I accidentally used the wrong AMEX card to make a purchase at surlatable.com. I realized this less than 3 minutes after I placed the order and immediately added the offer to the card. If anybody else has done this before, did the credit post? It's worth noting that AMEX sends me an immediate text alert when "card not present" transaction is made, and I didn't get that alert until 2 hrs later. I forgot to check if there was a pending transaction when I added the offer. If the credit doesn't post automatically, I'll contact AMEX and hopefully they'll understand.