Activate a new line at T-Mobile and BYOD for a $125 Costco Shop Card rebate.
Promotion dates: 10/18/19- 12/2/19
Device must be active for at least 3 billing cycles.
You must fill out a rebate form online afterwards.
Saw this promotion at a local Costco and combined it with the current iPhone 11 trade in deal.
I moved 5 lines over from Sprint. 4 lines got new iPhones (three iPhone 11's and one iPhone XR) and the last line got this $125 rebate.