CNET | Product reviews, advice, how-tos and the latest news Follow T-Mobile Hikes Late-Payment Charge Amid Other Recent Billing Changes T-Mobile encourages customers to use autopay by offering monthly discounts. https://www.cnet.com/tech/mobile/t-mobile-hikes-late-payment-charge-amid-other-recent-billing-changes/#ftag=CAD590a51e cnet.com