T-Mobile (TMUS) , one of the largest mobile providers in the U.S. with over 130 million customers nationwide, recently concluded 2024 on a high note. The company raked in a record-high net income of $11.

T-Mobile says that if your plan falls under the "Un-contract Promise," which guarantees your rates won't increase, it will pay your final month's recurring service charge if you decide to leave (as long as you let the company know within 60 days).

CNET obtained a T-Mobile memo sent to customers about a $5 per line price hike. The increase only affects some people on older plans.