Many of us who use Reward Checking accounts to earn higher interest rates on deposits routinely verify before the account cycle closes that the required number of transactions have posted.
If you made payments to AT&T on 3/17 in order to meet your transaction requirements, check your accounts. None of the payments made on that date have posted to any of the three RCAs used, although a) I received AT&T's Email confirmation of the payment and b) the amount of the payment has been credited to my AT&T balance. Further, none of the three RCAs show that there are pending transactions. Also, the three accounts involved are at three separate institutions, so it would be a huge coincidence if the three institutions had problems with the same day's transactions.
Payments made on 3/15 and 3/20 have posted, so the issue may be limited in scope.