Limited time offer; subject to change. Qualifying device, credit, service, and port-in (Verizon, AT&T, Spectrum, Claro, Xfinity, Liberty, Cox, Carolina Wireless or UScellular) required. You must unlock device before port-out; ask us how. Device balance (incl. lease purchase option) up to $800 paid by virtual prepaid MasterCard (no cash access & expires in 6 months) which you can use online or in-store via accepted mobile payment apps. Allow 2 weeks after rebate submission. Tax excluded. Submit proof of balance & 90+ days in good standing with carrier & device within 30 days of port-in and be active and in good standing when processed; allow up to 15 days. Devices previously used for Keep & Switch are not eligible. We might ask for more information. Up to 4 lines. One offer per subscriber. T-Mobile Prepaid MasterCard is rebate/reimbursement or exchange on port-in; for any tax implications, consult a tax advisor. No money has been paid by you for the card. Card is issued by Sunrise Banks N.A., Member FDIC, pursuant to a license from Mastercard International Incorporated. Mastercard is a registered trademark of Mastercard International Incorporated. Use of this card constitutes acceptance of the terms and conditions stated in the Cardholder Agreement.