wait for the receipt. Even if you don't get the receipt by 17th, you can always try to file without receipt. There are plenty of resources online telling you how to file without receipt. The concern normally is that if you send 485 without 140 receipt, they will simply ignore your application. Your job is just to make them aware that it is part of a concurrent filing. Not sure if it is going to work, but at least it is worth trying without any other viable alternatives.