diff --git a/src/api/promo.ts b/src/api/promo.ts
index 89a0f09..459f141 100644
--- a/src/api/promo.ts
+++ b/src/api/promo.ts
@@ -101,7 +101,9 @@ export const promoApi = {
 
   // Deactivate current active promo discount
   deactivateDiscount: async (): Promise<DeactivateDiscountResponse> => {
-    const response = await apiClient.post<DeactivateDiscountResponse>('/cabinet/promocode/deactivate-discount');
+    const response = await apiClient.post<DeactivateDiscountResponse>(
+      '/cabinet/promocode/deactivate-discount',
+    );
     return response.data;
   },
 };
diff --git a/src/pages/AdminApps.tsx b/src/pages/AdminApps.tsx
index 8ed24d2..df15423 100644
--- a/src/pages/AdminApps.tsx
+++ b/src/pages/AdminApps.tsx
@@ -590,7 +590,7 @@ export default function AdminApps() {
   const { capabilities } = usePlatform();
 
   // Use native Telegram back button in Mini App
-  useBackButton(() => navigate('/admin'));
+  useBackButton(() => navigate('/admin', { replace: true }));
 
   const [selectedPlatform, setSelectedPlatform] = useState<string>('ios');
   const [editingApp, setEditingApp] = useState<{ app: AppDefinition; isNew: boolean } | null>(null);
diff --git a/src/pages/AdminBroadcastCreate.tsx b/src/pages/AdminBroadcastCreate.tsx
index 0bc4f2d..7d555fc 100644
--- a/src/pages/AdminBroadcastCreate.tsx
+++ b/src/pages/AdminBroadcastCreate.tsx
@@ -119,7 +119,7 @@ export default function AdminBroadcastCreate() {
   const queryClient = useQueryClient();
   const fileInputRef = useRef<HTMLInputElement>(null);
 
-  useBackButton(() => navigate('/admin/broadcasts'));
+  useBackButton(() => navigate('/admin/broadcasts', { replace: true }));
 
   // Channel selection
   const [channel, setChannel] = useState<BroadcastChannel>('telegram');
diff --git a/src/pages/AdminBroadcastDetail.tsx b/src/pages/AdminBroadcastDetail.tsx
index 244d725..2b760e6 100644
--- a/src/pages/AdminBroadcastDetail.tsx
+++ b/src/pages/AdminBroadcastDetail.tsx
@@ -159,7 +159,7 @@ export default function AdminBroadcastDetail() {
 
   const broadcastId = id ? parseInt(id, 10) : null;
 
-  useBackButton(() => navigate('/admin/broadcasts'));
+  useBackButton(() => navigate('/admin/broadcasts', { replace: true }));
 
   // Fetch broadcast details
   const {
diff --git a/src/pages/AdminBroadcasts.tsx b/src/pages/AdminBroadcasts.tsx
index f8fd05c..ede052c 100644
--- a/src/pages/AdminBroadcasts.tsx
+++ b/src/pages/AdminBroadcasts.tsx
@@ -132,7 +132,7 @@ export default function AdminBroadcasts() {
   const { capabilities } = usePlatform();
 
   // Use native Telegram back button in Mini App
-  useBackButton(() => navigate('/admin'));
+  useBackButton(() => navigate('/admin', { replace: true }));
 
   const [page, setPage] = useState(0);
   const limit = 20;
diff --git a/src/pages/AdminCampaignCreate.tsx b/src/pages/AdminCampaignCreate.tsx
index e5d8566..b82a133 100644
--- a/src/pages/AdminCampaignCreate.tsx
+++ b/src/pages/AdminCampaignCreate.tsx
@@ -156,7 +156,7 @@ export default function AdminCampaignCreate() {
   const navigate = useNavigate();
   const queryClient = useQueryClient();
 
-  useBackButton(() => navigate('/admin/campaigns'));
+  useBackButton(() => navigate('/admin/campaigns', { replace: true }));
 
   // Form state
   const [name, setName] = useState('');
diff --git a/src/pages/AdminCampaignEdit.tsx b/src/pages/AdminCampaignEdit.tsx
index 6c50895..796d05a 100644
--- a/src/pages/AdminCampaignEdit.tsx
+++ b/src/pages/AdminCampaignEdit.tsx
@@ -133,7 +133,7 @@ export default function AdminCampaignEdit() {
 
   const campaignId = parseInt(id || '0');
 
-  useBackButton(() => navigate('/admin/campaigns'));
+  useBackButton(() => navigate('/admin/campaigns', { replace: true }));
 
   // Fetch campaign
   const {
diff --git a/src/pages/AdminCampaignStats.tsx b/src/pages/AdminCampaignStats.tsx
index 1c7403b..78e64b7 100644
--- a/src/pages/AdminCampaignStats.tsx
+++ b/src/pages/AdminCampaignStats.tsx
@@ -98,7 +98,7 @@ export default function AdminCampaignStats() {
   const [copied, setCopied] = useState(false);
   const [showUsers, setShowUsers] = useState(false);
 
-  useBackButton(() => navigate('/admin/campaigns'));
+  useBackButton(() => navigate('/admin/campaigns', { replace: true }));
 
   // Fetch stats
   const {
diff --git a/src/pages/AdminCampaigns.tsx b/src/pages/AdminCampaigns.tsx
index 7ed0359..2217d2e 100644
--- a/src/pages/AdminCampaigns.tsx
+++ b/src/pages/AdminCampaigns.tsx
@@ -68,7 +68,7 @@ export default function AdminCampaigns() {
   const { capabilities } = usePlatform();
 
   // Use native Telegram back button in Mini App
-  useBackButton(() => navigate('/admin'));
+  useBackButton(() => navigate('/admin', { replace: true }));
 
   const [deleteConfirm, setDeleteConfirm] = useState<number | null>(null);
 
diff --git a/src/pages/AdminDashboard.tsx b/src/pages/AdminDashboard.tsx
index 6babd35..9a2490e 100644
--- a/src/pages/AdminDashboard.tsx
+++ b/src/pages/AdminDashboard.tsx
@@ -366,7 +366,7 @@ export default function AdminDashboard() {
   const { capabilities } = usePlatform();
 
   // Use native Telegram back button in Mini App
-  useBackButton(() => navigate('/admin'));
+  useBackButton(() => navigate('/admin', { replace: true }));
 
   const [stats, setStats] = useState<DashboardStats | null>(null);
   const [loading, setLoading] = useState(true);
diff --git a/src/pages/AdminPaymentMethodEdit.tsx b/src/pages/AdminPaymentMethodEdit.tsx
index 15927c2..c4de007 100644
--- a/src/pages/AdminPaymentMethodEdit.tsx
+++ b/src/pages/AdminPaymentMethodEdit.tsx
@@ -73,7 +73,7 @@ export default function AdminPaymentMethodEdit() {
   const { capabilities } = usePlatform();
 
   // Use native Telegram back button in Mini App
-  useBackButton(() => navigate('/admin/payment-methods'));
+  useBackButton(() => navigate('/admin/payment-methods', { replace: true }));
 
   // Fetch payment methods
   const { data: methods, isLoading } = useQuery({
diff --git a/src/pages/AdminPaymentMethods.tsx b/src/pages/AdminPaymentMethods.tsx
index 7d10f56..ebbf18a 100644
--- a/src/pages/AdminPaymentMethods.tsx
+++ b/src/pages/AdminPaymentMethods.tsx
@@ -240,7 +240,7 @@ export default function AdminPaymentMethods() {
   const { capabilities } = usePlatform();
 
   // Use native Telegram back button in Mini App
-  useBackButton(() => navigate('/admin'));
+  useBackButton(() => navigate('/admin', { replace: true }));
 
   const [methods, setMethods] = useState<PaymentMethodConfig[]>([]);
   const [orderChanged, setOrderChanged] = useState(false);
diff --git a/src/pages/AdminPayments.tsx b/src/pages/AdminPayments.tsx
index c80d6df..30d0663 100644
--- a/src/pages/AdminPayments.tsx
+++ b/src/pages/AdminPayments.tsx
@@ -29,7 +29,7 @@ export default function AdminPayments() {
   const { capabilities } = usePlatform();
 
   // Use native Telegram back button in Mini App
-  useBackButton(() => navigate('/admin'));
+  useBackButton(() => navigate('/admin', { replace: true }));
 
   const [page, setPage] = useState(1);
   const [methodFilter, setMethodFilter] = useState<string>('');
diff --git a/src/pages/AdminPromoGroupCreate.tsx b/src/pages/AdminPromoGroupCreate.tsx
index 436ccdf..a8accb1 100644
--- a/src/pages/AdminPromoGroupCreate.tsx
+++ b/src/pages/AdminPromoGroupCreate.tsx
@@ -56,7 +56,7 @@ export default function AdminPromoGroupCreate() {
   const queryClient = useQueryClient();
   const isEdit = !!id;
 
-  useBackButton(() => navigate('/admin/promo-groups'));
+  useBackButton(() => navigate('/admin/promo-groups', { replace: true }));
 
   // Form state
   const [name, setName] = useState('');
diff --git a/src/pages/AdminPromoGroups.tsx b/src/pages/AdminPromoGroups.tsx
index a4aa870..f259af9 100644
--- a/src/pages/AdminPromoGroups.tsx
+++ b/src/pages/AdminPromoGroups.tsx
@@ -62,7 +62,7 @@ export default function AdminPromoGroups() {
   const { capabilities } = usePlatform();
 
   // Use native Telegram back button in Mini App
-  useBackButton(() => navigate('/admin'));
+  useBackButton(() => navigate('/admin', { replace: true }));
 
   const [deleteConfirm, setDeleteConfirm] = useState<number | null>(null);
 
diff --git a/src/pages/AdminPromoOfferSend.tsx b/src/pages/AdminPromoOfferSend.tsx
index fb68f0d..43cdf99 100644
--- a/src/pages/AdminPromoOfferSend.tsx
+++ b/src/pages/AdminPromoOfferSend.tsx
@@ -76,7 +76,7 @@ export default function AdminPromoOfferSend() {
   const navigate = useNavigate();
   const queryClient = useQueryClient();
 
-  useBackButton(() => navigate('/admin/promo-offers'));
+  useBackButton(() => navigate('/admin/promo-offers', { replace: true }));
 
   const [selectedTemplateId, setSelectedTemplateId] = useState<number | null>(null);
   const [sendMode, setSendMode] = useState<'segment' | 'user'>('segment');
diff --git a/src/pages/AdminPromoOfferTemplateEdit.tsx b/src/pages/AdminPromoOfferTemplateEdit.tsx
index 40f4ff5..7e2210b 100644
--- a/src/pages/AdminPromoOfferTemplateEdit.tsx
+++ b/src/pages/AdminPromoOfferTemplateEdit.tsx
@@ -22,7 +22,7 @@ export default function AdminPromoOfferTemplateEdit() {
   const { id } = useParams<{ id: string }>();
   const queryClient = useQueryClient();
 
-  useBackButton(() => navigate('/admin/promo-offers'));
+  useBackButton(() => navigate('/admin/promo-offers', { replace: true }));
 
   // Form state
   const [name, setName] = useState('');
diff --git a/src/pages/AdminPromoOffers.tsx b/src/pages/AdminPromoOffers.tsx
index 06eaad7..75e21bf 100644
--- a/src/pages/AdminPromoOffers.tsx
+++ b/src/pages/AdminPromoOffers.tsx
@@ -109,7 +109,7 @@ export default function AdminPromoOffers() {
   const { capabilities } = usePlatform();
 
   // Use native Telegram back button in Mini App
-  useBackButton(() => navigate('/admin'));
+  useBackButton(() => navigate('/admin', { replace: true }));
 
   const [activeTab, setActiveTab] = useState<'templates' | 'logs'>('templates');
 
diff --git a/src/pages/AdminPromocodeCreate.tsx b/src/pages/AdminPromocodeCreate.tsx
index 8c615e2..dcaffd0 100644
--- a/src/pages/AdminPromocodeCreate.tsx
+++ b/src/pages/AdminPromocodeCreate.tsx
@@ -51,7 +51,7 @@ export default function AdminPromocodeCreate() {
   const isEdit = !!id;
 
   // Use native Telegram back button in Mini App
-  useBackButton(() => navigate('/admin/promocodes'));
+  useBackButton(() => navigate('/admin/promocodes', { replace: true }));
 
   // Form state
   const [code, setCode] = useState('');
diff --git a/src/pages/AdminPromocodeStats.tsx b/src/pages/AdminPromocodeStats.tsx
index f6f7662..0ead519 100644
--- a/src/pages/AdminPromocodeStats.tsx
+++ b/src/pages/AdminPromocodeStats.tsx
@@ -89,7 +89,7 @@ export default function AdminPromocodeStats() {
   const navigate = useNavigate();
   const { id } = useParams<{ id: string }>();
 
-  useBackButton(() => navigate('/admin/promocodes'));
+  useBackButton(() => navigate('/admin/promocodes', { replace: true }));
 
   const {
     data: promocode,
diff --git a/src/pages/AdminPromocodes.tsx b/src/pages/AdminPromocodes.tsx
index 684b2f8..561cae7 100644
--- a/src/pages/AdminPromocodes.tsx
+++ b/src/pages/AdminPromocodes.tsx
@@ -114,7 +114,7 @@ export default function AdminPromocodes() {
   const { capabilities } = usePlatform();
 
   // Use native Telegram back button in Mini App
-  useBackButton(() => navigate('/admin'));
+  useBackButton(() => navigate('/admin', { replace: true }));
 
   const [deleteConfirm, setDeleteConfirm] = useState<number | null>(null);
   const [copiedCode, setCopiedCode] = useState<string | null>(null);
diff --git a/src/pages/AdminRemnawave.tsx b/src/pages/AdminRemnawave.tsx
index c95072e..8183a6d 100644
--- a/src/pages/AdminRemnawave.tsx
+++ b/src/pages/AdminRemnawave.tsx
@@ -879,7 +879,7 @@ export default function AdminRemnawave() {
   const { capabilities } = usePlatform();
 
   // Use native Telegram back button in Mini App
-  useBackButton(() => navigate('/admin'));
+  useBackButton(() => navigate('/admin', { replace: true }));
 
   // State
   const [activeTab, setActiveTab] = useState<TabType>('overview');
diff --git a/src/pages/AdminRemnawaveSquadDetail.tsx b/src/pages/AdminRemnawaveSquadDetail.tsx
index a4383a6..89dff09 100644
--- a/src/pages/AdminRemnawaveSquadDetail.tsx
+++ b/src/pages/AdminRemnawaveSquadDetail.tsx
@@ -55,7 +55,7 @@ export default function AdminRemnawaveSquadDetail() {
   const { uuid } = useParams<{ uuid: string }>();
   const navigate = useNavigate();
 
-  useBackButton(() => navigate('/admin/remnawave'));
+  useBackButton(() => navigate('/admin/remnawave', { replace: true }));
 
   // Fetch all squads and find the one we need
   const {
diff --git a/src/pages/AdminServerEdit.tsx b/src/pages/AdminServerEdit.tsx
index 2ad4e04..889ce68 100644
--- a/src/pages/AdminServerEdit.tsx
+++ b/src/pages/AdminServerEdit.tsx
@@ -49,7 +49,7 @@ export default function AdminServerEdit() {
 
   const serverId = parseInt(id || '0');
 
-  useBackButton(() => navigate('/admin/servers'));
+  useBackButton(() => navigate('/admin/servers', { replace: true }));
 
   const {
     data: server,
diff --git a/src/pages/AdminServers.tsx b/src/pages/AdminServers.tsx
index 941a49f..b70ae80 100644
--- a/src/pages/AdminServers.tsx
+++ b/src/pages/AdminServers.tsx
@@ -59,7 +59,7 @@ export default function AdminServers() {
   const { capabilities } = usePlatform();
 
   // Use native Telegram back button in Mini App
-  useBackButton(() => navigate('/admin'));
+  useBackButton(() => navigate('/admin', { replace: true }));
 
   // Queries
   const { data: serversData, isLoading } = useQuery({
diff --git a/src/pages/AdminSettings.tsx b/src/pages/AdminSettings.tsx
index 8e145ff..e9e86c2 100644
--- a/src/pages/AdminSettings.tsx
+++ b/src/pages/AdminSettings.tsx
@@ -51,7 +51,7 @@ export default function AdminSettings() {
   const { capabilities } = usePlatform();
 
   // Use native Telegram back button in Mini App
-  useBackButton(() => navigate('/admin'));
+  useBackButton(() => navigate('/admin', { replace: true }));
 
   // State
   const [activeSection, setActiveSection] = useState('branding');
diff --git a/src/pages/AdminTariffCreate.tsx b/src/pages/AdminTariffCreate.tsx
index af70c84..c7e2386 100644
--- a/src/pages/AdminTariffCreate.tsx
+++ b/src/pages/AdminTariffCreate.tsx
@@ -92,7 +92,7 @@ export default function AdminTariffCreate() {
   const queryClient = useQueryClient();
   const isEdit = !!id;
 
-  useBackButton(() => navigate('/admin/tariffs'));
+  useBackButton(() => navigate('/admin/tariffs', { replace: true }));
 
   // Step: null = type selection, 'period' or 'daily' = form
   const [tariffType, setTariffType] = useState<TariffType>(null);
diff --git a/src/pages/AdminTariffs.tsx b/src/pages/AdminTariffs.tsx
index 55850c6..7180759 100644
--- a/src/pages/AdminTariffs.tsx
+++ b/src/pages/AdminTariffs.tsx
@@ -77,7 +77,7 @@ export default function AdminTariffs() {
   const { capabilities } = usePlatform();
 
   // Use native Telegram back button in Mini App
-  useBackButton(() => navigate('/admin'));
+  useBackButton(() => navigate('/admin', { replace: true }));
 
   // Queries
   const { data: tariffsData, isLoading } = useQuery({
diff --git a/src/pages/AdminTicketSettings.tsx b/src/pages/AdminTicketSettings.tsx
index 72df75e..8fccfaa 100644
--- a/src/pages/AdminTicketSettings.tsx
+++ b/src/pages/AdminTicketSettings.tsx
@@ -22,7 +22,7 @@ export default function AdminTicketSettings() {
   const navigate = useNavigate();
   const queryClient = useQueryClient();
 
-  useBackButton(() => navigate('/admin/tickets'));
+  useBackButton(() => navigate('/admin/tickets', { replace: true }));
 
   const {
     data: settings,
diff --git a/src/pages/AdminTickets.tsx b/src/pages/AdminTickets.tsx
index fc6c7cc..903e2c6 100644
--- a/src/pages/AdminTickets.tsx
+++ b/src/pages/AdminTickets.tsx
@@ -124,7 +124,7 @@ export default function AdminTickets() {
   const { capabilities } = usePlatform();
 
   // Use native Telegram back button in Mini App
-  useBackButton(() => navigate('/admin'));
+  useBackButton(() => navigate('/admin', { replace: true }));
 
   const [selectedTicketId, setSelectedTicketId] = useState<number | null>(null);
   const [statusFilter, setStatusFilter] = useState<string>('');
diff --git a/src/pages/AdminUserDetail.tsx b/src/pages/AdminUserDetail.tsx
index eb1087b..69481a9 100644
--- a/src/pages/AdminUserDetail.tsx
+++ b/src/pages/AdminUserDetail.tsx
@@ -82,7 +82,7 @@ export default function AdminUserDetail() {
   const navigate = useNavigate();
   const { id } = useParams<{ id: string }>();
 
-  useBackButton(() => navigate('/admin/users'));
+  useBackButton(() => navigate('/admin/users', { replace: true }));
 
   const localeMap: Record<string, string> = { ru: 'ru-RU', en: 'en-US', zh: 'zh-CN', fa: 'fa-IR' };
   const locale = localeMap[i18n.language] || 'ru-RU';
diff --git a/src/pages/AdminUsers.tsx b/src/pages/AdminUsers.tsx
index 4132af4..7f7e8fd 100644
--- a/src/pages/AdminUsers.tsx
+++ b/src/pages/AdminUsers.tsx
@@ -399,7 +399,7 @@ export default function AdminUsers() {
   const { capabilities } = usePlatform();
 
   // Use native Telegram back button in Mini App
-  useBackButton(() => navigate('/admin'));
+  useBackButton(() => navigate('/admin', { replace: true }));
 
   const [users, setUsers] = useState<UserListItem[]>([]);
   const [stats, setStats] = useState<UsersStatsResponse | null>(null);
diff --git a/src/pages/AdminWheel.tsx b/src/pages/AdminWheel.tsx
index 213e7a0..7645663 100644
--- a/src/pages/AdminWheel.tsx
+++ b/src/pages/AdminWheel.tsx
@@ -292,7 +292,7 @@ export default function AdminWheel() {
   const { capabilities } = usePlatform();
 
   // Use native Telegram back button in Mini App
-  useBackButton(() => navigate('/admin'));
+  useBackButton(() => navigate('/admin', { replace: true }));
 
   const [activeTab, setActiveTab] = useState<Tab>('settings');
   const [expandedPrizeId, setExpandedPrizeId] = useState<number | null>(null);