diff --git a/alkatorapi/migrations/0013_user_phone.py b/alkatorapi/migrations/0013_user_phone.py
new file mode 100644
index 0000000..6c34dae
--- /dev/null
+++ b/alkatorapi/migrations/0013_user_phone.py
@@ -0,0 +1,18 @@
+# Generated by Django 4.2.12 on 2024-08-06 05:47
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('alkatorapi', '0012_user_paid_user_trans_id'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='user',
+            name='phone',
+            field=models.CharField(blank=True, max_length=120, null=True),
+        ),
+    ]
diff --git a/alkatorapi/models.py b/alkatorapi/models.py
index 440c9c4..fb081d1 100644
--- a/alkatorapi/models.py
+++ b/alkatorapi/models.py
@@ -26,6 +26,7 @@ class User(models.Model):
     last_name = models.CharField(max_length=120)
     address = models.CharField(max_length=255, null=True, blank=True)
     email = models.EmailField(max_length=120, null=True, blank=True)
+    phone = models.CharField(max_length=120, null=True, blank=True)
     date_of_birth = models.DateField(null=True, blank=True)
     register_date = models.DateTimeField(auto_now=True)
     duration = models.DurationField(null=True, blank=True)
diff --git a/alkatorapi/views.py b/alkatorapi/views.py
index 5b4ab62..5755543 100644
--- a/alkatorapi/views.py
+++ b/alkatorapi/views.py
@@ -29,6 +29,8 @@ def register(request):
         return HttpResponse('{"reason":"Email je povinný!"}', status=400, content_type='application/json')
     if not request.POST['address']:
         return HttpResponse('{"reason":"Adresa je povinná!"}', status=400, content_type='application/json')
+    if not request.POST['phone']:
+        return HttpResponse('{"reason":"Telefoní číslo je povinný!"}', status=400, content_type='application/json')
     if User.objects.filter(email=request.POST['email'], alkator_class=ALKATOR_CLASS):
         return HttpResponse('{"reason":"Email je již registrován!"}', status=400, content_type='application/json')
     try:
@@ -46,6 +48,7 @@ def register(request):
         email=request.POST['email'],
         date_of_birth=dat,
         address=request.POST['address'],
+        phone=request.POST['phone'],
         alkator_class=ALKATOR_CLASS,
     )
     user.save()
@@ -81,14 +84,17 @@ def register(request):
 def payment_result(request):
     result = parse_qs(request.body.decode('utf8'))
     ref_id = int(result['refId'][0])
-    paid = result['status'][0] == 'PAID'
+    paid = result['status'][0]
     secret_match = result['secret'][0] == COMGATE_SECRET
     test = result['test'][0] != 'false'
     if not secret_match or test != COMGATE_TEST:
         return HttpResponse(status=400)
     user = User.objects.get(id=ref_id)
-    user.paid = paid
-    user.save()
+    if paid == 'PAID':
+        user.paid = True
+        user.save()
+    elif paid == 'CANCELLED':
+        user.delete()
     return HttpResponse(status=200)
 
 
diff --git a/frontend/src/scripts/index.js b/frontend/src/scripts/index.js
index 1679c9e..4b609f9 100644
--- a/frontend/src/scripts/index.js
+++ b/frontend/src/scripts/index.js
@@ -285,6 +285,10 @@ class Main extends Component {
                 <label for="date_of_birth" class="form-label">Datum narození</label>
                 <input type="date" class="form-control" id="date_of_birth" name="date_of_birth" max={new Date().toJSON().slice(0, 10)} />
             </div>
+            <div class="mb-3">
+                <label for="phone" class="form-label">Telefonní číslo</label>
+                <input type="text" class="form-control" id="phone" name="phone" />
+            </div>
             <div class="mb-3">
                 <label for="address" class="form-label">Adresa (kvůli fakturaci)</label>
                 <input type="text" class="form-control" id="address" name="address" />
@@ -316,7 +320,7 @@ class Main extends Component {
         Nejsme plátci DPH.<br />
         Název společnosti: Zhoor s.r.o.<br />
         sídlo: Červenovodská 548, Králíky, 561 69<br />
-        Číslo účtu: 131-2219860207/0100<br />)
+        Číslo účtu: 131-2219860207/0100<br />
     </div>
 </div>
         );