Kim Kardashian West mocks herself in T-Mobile's Super Bowl 2015 commercial. She explains that wireless companies are taking back millions of GBs in unused data each month. The data you paid for could have been used to see Kim Kardashian West's makeup, backhand, outfits, vacations and more. Sadly, they've all been lost. Help save the data by switching to T-Mobile. The un-carrier has Data Stash, which allows you to keep your unused data for up to a year.