Two years ago, T-Mobile announced a controversial decision to ditch its AutoPay discount for Apple Pay and credit cards payments. Its reasoning at the time, of course, was that it pays higher processing fees on credit card transactions, so it saves a few dollars by restricting AutoPay to debit and bank payments only.
Unfortunately, T-Mobile is now cracking down on a popular workaround that allowed customers to get an AutoPay discount and still use a credit card or Apple Pay for payments.