diff --git a/admin_board_view/views.py b/admin_board_view/views.py
index 912ba82..15549c0 100644
--- a/admin_board_view/views.py
+++ b/admin_board_view/views.py
@@ -19,7 +19,7 @@ def index(request):
         total_balance = sum(user.balance for user in User.objects.all())
         return render(request, "home.html", {"users": User.objects.all(), "product_amount": product_amount, "total_balance": total_balance, "top_types": top_up_types })
     else:
-        user = User.objects.get(user_id=request.user.id)
+        user = User.objects.get(email=request.user.email)
 
         # Get product sales
         product_sales = list(ProductTransactions.objects.all().filter(transaction_id__user_id=user))
diff --git a/koala-migrate.py b/koala-migrate.py
index 0e56714..ee9f492 100755
--- a/koala-migrate.py
+++ b/koala-migrate.py
@@ -24,9 +24,39 @@ def get_mongoose_connection():
 koala = get_koala_connection()
 mongoose = get_mongoose_connection()
 
+
+def migrate_email():
+    query = """
+        select members.id, members.email
+        from public.members
+        inner join checkout_balances on members.id = checkout_balances.member_id;
+    """
+
+    with koala:
+        koala_cursor = koala.cursor()
+        koala_cursor.execute(query)
+
+        for user in koala_cursor.fetchall():
+            id = user[0]
+            email = user[1]
+            update_email(id, email)
+
+
+def update_email(id, email):
+    query = """
+        update public.mongoose_app_user
+        set email = %s
+        where user_id = %s;
+    """
+
+    with mongoose:
+        mongoose_cursor = mongoose.cursor()
+        mongoose_cursor.execute(query, (email, id))
+
+
 def migrate_users():
     select_members_with_tegoed = """
-        select members.id, members.first_name, members.infix, members.last_name, members.birth_date, checkout_balances.balance
+        select members.id, members.first_name, members.infix, members.last_name, members.birth_date, checkout_balances.balance, members.email
         from public.members
         inner join checkout_balances on members.id = checkout_balances.member_id;
     """
@@ -46,20 +76,20 @@ def migrate_users():
 
             birthday = user[4]
             balance = user[5]
+            email = user[6]
 
-            create_user_with_tegoed(id, balance, name, birthday)
+            create_user_with_tegoed(id, balance, name, birthday, email)
 
-# TODO: use execute_many to insert a whole batch at once and reuse the connection
-def create_user_with_tegoed(id, balance, name, birthday):
+
+def create_user_with_tegoed(id, balance, name, birthday, email):
     query = """
-        insert into public.mongoose_app_user(user_id, balance, name, birthday)
-        values (%s, %s, %s, %s);
+        insert into public.mongoose_app_user(user_id, balance, name, birthday, email)
+        values (%s, %s, %s, %s, %s);
     """
 
     with mongoose:
         mongoose_cursor = mongoose.cursor()
-
-        mongoose_cursor.execute(query, (id, balance, name, birthday))
+        mongoose_cursor.execute(query, (id, balance, name, birthday, email))
 
 
 def migrate_cards():
diff --git a/mongoose_app/migrations/0028_save_email_in_user_add_mollie.py b/mongoose_app/migrations/0028_save_email_in_user_add_mollie.py
new file mode 100644
index 0000000..fcf547b
--- /dev/null
+++ b/mongoose_app/migrations/0028_save_email_in_user_add_mollie.py
@@ -0,0 +1,23 @@
+# Generated by Django 4.0.2 on 2023-12-12 15:39
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('mongoose_app', '0027_added_configuration_model'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='user',
+            name='email',
+            field=models.EmailField(blank=True, max_length=254, null=True),
+        ),
+        migrations.AlterField(
+            model_name='topuptransaction',
+            name='type',
+            field=models.IntegerField(choices=[(1, 'Pin'), (2, 'Credit card'), (3, 'Mollie')], default=1),
+        ),
+    ]
diff --git a/mongoose_app/models.py b/mongoose_app/models.py
index 25664c5..384dff0 100644
--- a/mongoose_app/models.py
+++ b/mongoose_app/models.py
@@ -177,6 +177,7 @@ class User(models.Model):
     user_id = models.IntegerField(unique=True)
     name = models.CharField(max_length=50)
     birthday = models.DateField()
+    email = models.EmailField(max_length=254, null=True, blank=True)
     balance = models.DecimalField(decimal_places=2, max_digits=6, default=Decimal('0.00'))
 
     def __str__(self):
diff --git a/mongoose_app/views.py b/mongoose_app/views.py
index fda482d..a08be95 100644
--- a/mongoose_app/views.py
+++ b/mongoose_app/views.py
@@ -234,7 +234,8 @@ def register_card(request):
         user = User.objects.create(
             user_id=user_id,
             name=f'{first_name} {infix} {last_name}' if infix else f'{first_name} {last_name}',
-            birthday=born
+            birthday=born,
+            email=koala_response['email']
         )
         card = Card.objects.create(
             card_id=card_id,
diff --git a/undead_mongoose/oidc.py b/undead_mongoose/oidc.py
index 5d2827c..f346390 100644
--- a/undead_mongoose/oidc.py
+++ b/undead_mongoose/oidc.py
@@ -1,5 +1,4 @@
 from mozilla_django_oidc.auth import OIDCAuthenticationBackend
-#from myapp.models import Profile
 
 class UndeadMongooseOIDC(OIDCAuthenticationBackend):
     def create_user(self, claims):
@@ -8,7 +7,6 @@ def create_user(self, claims):
             user.is_superuser = True
             user.is_staff = True
         user.username = claims['email']
-        user.id = claims['sub']
         user.save()
 
         return user
@@ -18,7 +16,6 @@ def update_user(self, user, claims):
             user.is_superuser = True
             user.is_staff = True
         user.username = claims['email']
-        user.id = claims['sub']
         user.save()
 
         return user