FInal bank, stripe and paypal sandbox completed

backend/igny8_core/auth/serializers.py

@@ -53,7 +53,7 @@ class AccountSerializer(serializers.ModelSerializer):
         fields = [
             'id', 'name', 'slug', 'owner', 'plan', 'plan_id',
             'credits', 'status', 'payment_method',
-            'subscription', 'created_at'
+            'subscription', 'billing_country', 'created_at'
         ]
         read_only_fields = ['owner', 'created_at']