Working on client subs

app/Services/BillingSubscription/BillingSubscriptionService.php

@@ -191,6 +191,7 @@ class BillingSubscriptionService
         if(!$invoice)
             throw new \Exception("Could not match an invoice for payment of billing subscription");
 
+        //todo - need to remove the promo code - if it exists
         return InvoiceToRecurringInvoiceFactory::create($invoice);
         
     }