Received the following offer on my Suntrust MasterCard, but YMMV:
Earn $50.00 cash back
Close Offer Details
Earn $50 cash back when you make two transactions with AT&T wireless service using your eligible card associated with this offer.
Call 1-800-868-9708, visit AT&T.com or come into an AT&T store today!
Offer expires 7/21/2018. Offer valid one time only. Must make two separate transactions with AT&T on wireless products or services of at least $15.00 on the card associated with this offer by 9/4/2018. Your $50 cash back is earned within 30 days after making your second transaction. See offer details. Taxes, fees, other charges & restrictions may apply. Add'l speed, usage, and other restrictions apply.
Note: Offer is only valid when you pay with your eligible SunTrust credit or debit card.
Not sure if this needs to be merged with the BoA thread, which has the same offer, just different bank.