BTC Address (BEP20) :
Since you're paying in an altcoin (something maybe called Bitcoin, but working on Binance chain), I think that altcoin services would be more appropriate for your topic.
it's still BTC despite the network being different. Altcoins are those that aren't BTC such as ETH, XRP, USDT, etc. BTC, on the other hand, still is a BTC regardless of the network it will be received/sent to.