T-Mobile US launched a promotion under which customers who bring their number to T-Mobile can get an iPhone 7 on us or iPhone 7 Plus for USD 100 after trade-in and rebate. This deal is available for new and existing customers, but it only lasts through 16 March. Customers need to bring their number to T-Mobile and sign up for T-Mobile One to get their new iPhone 7 or iPhone 7 Plus. Up to 12 iPhone 7 devices can be purchased under the terms of the offer. T-Mobile recently launched a limited-time offer to give customers with at least 2 lines an additional line of service at no extra cost.