diff --git a/resources/views/partials/sidebar.blade.php b/resources/views/partials/sidebar.blade.php
index 167f8a0d1..cb5c5d6d0 100644
--- a/resources/views/partials/sidebar.blade.php
+++ b/resources/views/partials/sidebar.blade.php
@@ -162,12 +162,12 @@
         @endphp
         @if($userRole !== 'Admin')
             @if($userRole === 'User')
-                <a href="https://simplegate.space/apps/3MjgKvosMZtc2sSxiRBwadDCn1zA/pos" target="_blank" class="flex items-center px-4 py-3 text-white hover:bg-white/10 rounded transition mt-4">
+                <a href="https://example.com" target="_blank" class="flex items-center px-4 py-3 text-white hover:bg-white/10 rounded transition mt-4">
                     <i class="fa fa-arrow-up fa-fw mr-3"></i>
                     <span>Upgrade Your Account</span>
                 </a>
             @else
-                <a href="https://simplegate.space/apps/3MjgKvosMZtc2sSxiRBwadDCn1zA/pos" target="_blank" class="flex items-center px-4 py-3 text-white hover:bg-white/10 rounded transition mt-4">
+                <a href="https://example.com" target="_blank" class="flex items-center px-4 py-3 text-white hover:bg-white/10 rounded transition mt-4">
                     <i class="fa fa-clock fa-fw mr-3"></i>
                     <span>Extend Your Account</span>
                 </a>
@@ -186,4 +186,3 @@
         </form>
     @endauth
 </nav>
-
diff --git a/routes/web.php b/routes/web.php
index 692a8b5d3..cbd993ee3 100644
--- a/routes/web.php
+++ b/routes/web.php
@@ -368,7 +368,7 @@ Route::middleware('role_or_permission:Admin|Moderator|edit release')->prefix('ad
 
 // Redirect btcpay route to btc payment server
 Route::get('btcpay', function () {
-    return redirect()->to('https://simplegate.space/apps/3MjgKvosMZtc2sSxiRBwadDCn1zA/pos');
+    return redirect()->to('https://example.com');
 })->name('btcpay');
 // Invitation management routes
 Route::prefix('invitations')->name('invitations.')->group(function () {
diff --git a/tests/Feature/BtcPaymentLinkTest.php b/tests/Feature/BtcPaymentLinkTest.php
new file mode 100644
index 000000000..c398deda4
--- /dev/null
+++ b/tests/Feature/BtcPaymentLinkTest.php
@@ -0,0 +1,145 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Feature;
+
+use App\Models\User;
+use Illuminate\Contracts\Console\Kernel;
+use Illuminate\Database\Eloquent\Collection;
+use Illuminate\Support\Facades\Gate;
+use PDO;
+use Spatie\Permission\Models\Role;
+use Tests\TestCase;
+
+class BtcPaymentLinkTest extends TestCase
+{
+    private string $databasePath;
+
+    /**
+     * @var array<string, string|false>
+     */
+    private array $originalEnvironment = [];
+
+    public function createApplication()
+    {
+        $this->databasePath = sys_get_temp_dir().'/nntmux-btc-payment-link-test.sqlite';
+
+        $this->originalEnvironment = [
+            'APP_ENV' => getenv('APP_ENV'),
+            'DB_CONNECTION' => getenv('DB_CONNECTION'),
+            'DB_DATABASE' => getenv('DB_DATABASE'),
+        ];
+
+        if (file_exists($this->databasePath)) {
+            unlink($this->databasePath);
+        }
+
+        $pdo = new PDO('sqlite:'.$this->databasePath);
+        $pdo->exec('CREATE TABLE settings (name VARCHAR PRIMARY KEY, value TEXT NULL)');
+        $pdo->exec('CREATE TABLE permissions (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            name VARCHAR NOT NULL,
+            guard_name VARCHAR NOT NULL,
+            created_at DATETIME NULL,
+            updated_at DATETIME NULL
+        )');
+        $pdo->exec("INSERT INTO settings (name, value) VALUES
+            ('categorizeforeign', '0'),
+            ('catwebdl', '0'),
+            ('title', 'NNTmux Test'),
+            ('home_link', '/')");
+
+        $this->setEnvironmentValue('APP_ENV', 'testing');
+        $this->setEnvironmentValue('DB_CONNECTION', 'sqlite');
+        $this->setEnvironmentValue('DB_DATABASE', $this->databasePath);
+
+        $app = require __DIR__.'/../../bootstrap/app.php';
+
+        $app->make(Kernel::class)->bootstrap();
+
+        return $app;
+    }
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        config([
+            'database.default' => 'sqlite',
+            'database.connections.sqlite.database' => $this->databasePath,
+            'app.key' => 'base64:'.base64_encode(random_bytes(32)),
+        ]);
+
+        Gate::before(static fn (): bool => false);
+    }
+
+    protected function tearDown(): void
+    {
+        if ($this->databasePath !== '' && file_exists($this->databasePath)) {
+            unlink($this->databasePath);
+        }
+
+        parent::tearDown();
+
+        foreach ($this->originalEnvironment as $key => $value) {
+            $this->setEnvironmentValue($key, $value === false ? null : $value);
+        }
+    }
+
+    public function test_btcpay_route_redirects_to_placeholder(): void
+    {
+        $this->get(route('btcpay'))
+            ->assertRedirect('https://example.com');
+    }
+
+    public function test_user_sidebar_renders_upgrade_placeholder(): void
+    {
+        $this->actingAs($this->userWithRole('User'));
+
+        $this->view('partials.sidebar')
+            ->assertSee('href="https://example.com"', false)
+            ->assertSee('Upgrade Your Account')
+            ->assertDontSee('Extend Your Account');
+    }
+
+    public function test_supporter_sidebar_renders_extension_placeholder(): void
+    {
+        $this->actingAs($this->userWithRole('Supporter'));
+
+        $this->view('partials.sidebar')
+            ->assertSee('href="https://example.com"', false)
+            ->assertSee('Extend Your Account')
+            ->assertDontSee('Upgrade Your Account');
+    }
+
+    private function userWithRole(string $roleName): User
+    {
+        $user = new User([
+            'consoleview' => false,
+            'movieview' => false,
+            'musicview' => false,
+            'gameview' => false,
+            'xxxview' => false,
+            'bookview' => false,
+        ]);
+        $user->id = 1;
+        $user->setRelation('roles', new Collection([new Role(['name' => $roleName])]));
+
+        return $user;
+    }
+
+    private function setEnvironmentValue(string $key, ?string $value): void
+    {
+        if ($value === null) {
+            putenv($key);
+            unset($_ENV[$key], $_SERVER[$key]);
+
+            return;
+        }
+
+        putenv($key.'='.$value);
+        $_ENV[$key] = $value;
+        $_SERVER[$key] = $value;
+    }
+}