Home Slickdeals IT’S BACK: T-Mobile Costco 2018 Apple XR, XS, XS Max Trade In... Slickdeals IT’S BACK: T-Mobile Costco 2018 Apple XR, XS, XS Max Trade In up to $390 By ARCOM - 7 December 2018 279 0 SHARE Facebook Twitter Go to the deal page: IT’S BACK: T-Mobile Costco 2018 Apple XR, XS, XS Max Trade In up to $390