T-Mobile has announced that it will be offering a $200 prepaid MasterCard plus the value of your trade-in when you purchase an iPhone X/8/7/Plus starting Friday, February 23rd. You can also combine this offer with T-Mobile’s current ONE family plan, which nets you a second device for free. Full details can be found on this landing page. You’ll receive your MasterCard within 6-8 weeks of filling out the form and completing your eligible trade-in.