Originally Posted by krk3561

I did this in Feb with Amex card 1 and I just did it this last week with Amex card 2. I waited until hour 23 to cancel. The card transaction posts and the credit is posted several days later.

Originally Posted by robchow

Do you recall what time you made the purchase (please include Eastern, Pacific, etc.)? Did you cancel at 23 hour or after? I am wondering if timing plays a role on when AS submits and/or AMEX system post the transaction.