Pax code I've had since forever

I’ve had this pax code forever for the commander Lilith dlc and I know it’s crazy but I just finally found it and went to enter it but it gave me a "Something went wrong " message upon entering it so I was wondering if maybe they expire or what I could do to talk with staff in order to get this fixed

I don’t know about that specific code, but I know some of the BL3 codes had a definite expiry date of 1 year. Your best option would be to file support tickets with both the MS Store and 2K/GBX - hopefully one of them would be able to confirm the details for you.

You can file a 2K/GBX support ticket here