Borderlands 4 Golden Keys, unknown expiry.

T9RJB-BFKRR-3RBTW-B33TB-KCZB9

THRBT-WW6CB-56TB5-3B3BJ-XBW3X

WHWJB-XH3SX-39CZW-H3BBB-BTF55

also:

Under Discord Quests using Discord Desktop App, one personal unique Golden Key code after playing Borderlands 4 for 15 minutes. Expires Sep 25:

https://discord.com/quests/1410010688482705610