diff --git a/src/app/(main)/(marketing)/newsletter/NewsletterClient.tsx b/src/app/(main)/(marketing)/newsletter/NewsletterClient.tsx
index a2deae5..f73c57a 100644
--- a/src/app/(main)/(marketing)/newsletter/NewsletterClient.tsx
+++ b/src/app/(main)/(marketing)/newsletter/NewsletterClient.tsx
@@ -2,7 +2,6 @@
 
 import { useEffect, useMemo, useState } from 'react';
 import { useRouter } from 'next/navigation';
-import Link from 'next/link';
 import { Badge } from '@/components/ui/Badge';
 import { Button } from '@/components/ui/Button';
 import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/Card';
@@ -356,13 +355,13 @@ export default function NewsletterClient() {
               <p className="text-sm text-slate-600">Internal access only.</p>
             </CardHeader>
             <CardContent>
-              <form onSubmit={handleLogin} className="space-y-4">
+              <form onSubmit={handleLogin} className="space-y-4" autoComplete="off">
                 <Input
                   label="Email"
                   type="email"
                   value={email}
                   onChange={(event) => setEmail(event.target.value)}
-                  placeholder="support@qrmaster.net"
+                  autoComplete="off"
                   required
                 />
                 <Input
@@ -370,7 +369,7 @@ export default function NewsletterClient() {
                   type="password"
                   value={password}
                   onChange={(event) => setPassword(event.target.value)}
-                  placeholder="••••••••"
+                  autoComplete="new-password"
                   required
                 />
                 {loginError && <p className="text-sm text-red-600">{loginError}</p>}
@@ -378,9 +377,6 @@ export default function NewsletterClient() {
                   Sign in
                 </Button>
               </form>
-              <Link href="/" className="mt-4 block text-center text-sm text-slate-500 hover:text-slate-900">
-                Back to home
-              </Link>
             </CardContent>
           </Card>
         </div>
diff --git a/src/app/(main)/api/stripe/checkout/route.ts b/src/app/(main)/api/stripe/checkout/route.ts
index 3721771..b9fb3a7 100644
--- a/src/app/(main)/api/stripe/checkout/route.ts
+++ b/src/app/(main)/api/stripe/checkout/route.ts
@@ -53,6 +53,7 @@ export async function POST(request: NextRequest) {
       customer: customerId,
       mode: 'subscription',
       payment_method_types: ['card'],
+      allow_promotion_codes: true,
       line_items: [
         {
           price: priceId,
diff --git a/src/app/(main)/api/stripe/create-checkout-session/route.ts b/src/app/(main)/api/stripe/create-checkout-session/route.ts
index b23ca66..6f011f0 100644
--- a/src/app/(main)/api/stripe/create-checkout-session/route.ts
+++ b/src/app/(main)/api/stripe/create-checkout-session/route.ts
@@ -108,6 +108,7 @@ export async function POST(request: NextRequest) {
       customer: customerId,
       mode: 'subscription',
       payment_method_types: ['card'],
+      allow_promotion_codes: true,
       line_items: [
         {
           price: priceId,