Costco Warehouses are offering up to $900 Virtual Express Prepaid MasterCard when you purchase 2 Samsung Galaxy S20 5G Series (S20, S20+, S20 Ultra ), S10 Series (S10e, S10, S10+), or Note10 Series Smartphones (Note10, Note10+, Note 10+ 5G) for T-Mobile and add activate a new line of service for a limited time. This offer is only valid in-store and valid through February 27, 2020. Plus, if you preorder and pre-register a Samsung Galaxy S20 5G Smartphone, you may be eligible for up to $200 in Samsung credit that is valid through March 5, 2020. You can mix and match devices but both devices need to be activated and one of the new devices needs to be a new line of service. [Costco Locator]