sounds like a definite scam.

so they reached out to me on Xbox saying

Them: Hello, I checked your xbоҳ paсcn value on ( xbοҳio . com ) and was surprised to see how valuable it is! I'd like to buy it at that price, DM on iпstgrm - xb_buyer . Even if you think it's undervalued I might have a better offer. (exactly what they said)

and i responded: no. i use my Xbox account regurlly and i have personal info on here. i decline your offer. good luck on someone else