simple upgrade/billing address form

rowers/payments.py

@@ -27,4 +27,9 @@ def setrowerplans():
             else:
                 print 'Could not set plan for ',r
 
+def is_existing_customer(rower):
+    if rower.country is not None and rower.customer_id is not None and r.country != '':
+        return True
+
+    return False