Neither of these codes are working on the XBox One.
We’re still working on getting Borderlands: The Handsome Collection’s loyalty rewards online. In the meantime, use these SHiFT codes to unlock 25 Golden Keys in Borderlands 2 and Borderlands: The Pre-Sequel to help you get started! These codes will expire on March 31, 2015 – so use them before then!
Xbox 360 / Xbox One: CJC33-KHBCW-FHF6Z-C6JTB-F9395
Xbox 360/Xbox One: 555JT-6TTT9-KCFJX-CXT33-T3FBC