Yep this did the trick, thanks again. I didnt get the chime at the end but I drove it for 5 mins and didnt get any reminder chime.
1) Plug seatbelt
2) Turn key to the on position, engine off. Wait for seatbelt
light to go off,
3) Undo and redo the seatbelt
3 times, leaving it buckled the last time.
4) Turn the key off and you should hear a chime
indicating that you disabled the chime