I used to be able to reply to messages and now I can't for some reason. It says I have to add a phone number and when I go to do that it says my number isn't a US number, then it gives me an error code (5p339z7q)
My phone number is a US number and nothing works. Please help.
I have sent them an email since what you mentioned doesn't pertain to me. I have service from ATT and have used my number for multiple verifications, I don't know why OfferUp is giving me issues all of sudden.