If you're a monthly member, you'll see a recurring charge on your credit card statement every month on the same day you became a member (if you bought your membership on Jan 8th, you'll see the charge Feb 8th, March 8th, etc.)
Your church finance director would probably love you for turning in a receipt for each of these transactions. (Always keep accounting happy. This is a very important rule to live by!)
Our friend--and DYM Member--Anthony created this tutorial video to show you how quick and easy it is to find your receipt!