Reactivated Account - Can't Sell Anymore

I had been doing FBA selling supplements for over a year having sold thousands of units, however my account was then deactivated for policy violations. Following an arduous appeal process, I managed to get the account reinstated through mediation.

Yet, now when I list products that I sold before or try to reinstate old listings using the ASIN, the listings are immediately made inactive. Having spoken to seller central, they said I dont have permission to sell supplements even though I've sold it before.

I even had a specialist take ownership of the case and stressed that he was escalating internally given that I had permission before. He has now gone missing and I'm getting a blank, you don't have permission response. Despite, successfully mediating and having my account reopened

What can I do?