Hi , it ' s me , ur ideas man <| sep |> When I contacted TForce they told meGood morning ! Great question ! Costco purchases would still count , however they do work a little differently . Costco customers will receive a bill credit for their trade in value and a Prepaid MasterCard card rebate for the remaining value . Instead of monthly bill credits You would just have to wait for your prepaid card in the mail for the remainder of the credit ! Thanks for asking ! ChelseaBThanks for the info . Would the MasterCard be sent automatically or is there a link where I need to apply for it ? There is a link and I don ' t want you to miss out on this great deal . It will take about 68 weeks after submitting for the offer . Here is all the information you ' ll need for this great deal . Submit for the offer at TMobile . compromotions and using promo code BLACKFRIDAY 16 and you ' ll be good to go ! Please let us know if you have other questions . We are here to help . BarbP