How do I sell bep2 coins? Total newbie

Good day fellow redditors. I’m in want of some help. I've some “bep2” Matic (polygon) coins on belief wallet. I acquired a notification saying that the bep2 coins have to be exchanged at Binance before March 31st, and any left will probably be burned. I attempted to swap it in trust pockets. No go. I attempted Changelly and pancake swap. Nope. I contacted belief wallet, they stated undergo Binance. But once I contacted Binance.com, they stated I used to be outdoors their territory. And once I contacted Binance.us, they stated that they don’t take bep2 something. I then contacted polygon, who stated I had to undergo Binance. So… am I just not going to be able to switch these? I might very a lot recognize some help.