Add comments and clean up Lago customers

core/models.py

@@ -106,6 +106,9 @@ class User(AbstractUser):
             if self.stripe_id:
                 stripe.Customer.delete(self.stripe_id)
                 log.info(f"Deleted Stripe customer {self.stripe_id}")
+            if self.billing_provider_id:
+                billing.delete_customer(self)
+                log.info(f"Deleted Billing customer {self.billing_provider_id}")
         super().delete(*args, **kwargs)
 
     # Override save to update attributes in Lago
@@ -118,9 +121,8 @@ class User(AbstractUser):
                 self.stripe_id = billing.get_or_create(
                     self.email, self.first_name, self.last_name
                 )
-
-            billing_id = billing.create_or_update_customer(self)
-            self.billing_provider_id = billing_id
+            if not self.billing_provider_id:
+                self.billing_provider_id = billing.create_or_update_customer(self)
 
             billing.update_customer_fields(self)