T-Mobile users have previously been able to voluntarily suspend their mobile plans while traveling abroad to avoid paying full price. T-Mobile's new policy changes the way holds works, with the carrier now charging users the full plan price for suspensions.

T-Mobile promised users who bought certain mobile plans that it would never raise their prices for as long as they lived—but then raised their prices this year. So it's no surprise that 2,000 T-Mobile customers complained to the government about a price hike on plans that were advertised as having a lifetime price lock.

T-Mobile offered customers aged 55 or older a "lifetime price lock" on their plans, a deal that attracted many customers. Too many, it turns out: the company has reneged on the deal and raised those users' fees,