To exchange BTC_BEP20 for Tether ERC20 USDT, you need to follow a few steps:
Submit an application, indicating the amount of BTC_BEP20 for the exchange, Tether ERC20 USDT wallet and e-mail.
Read the terms of the agreement for the provision of exchange services, if you accept them, check the appropriate box. And create an application.
After sending BTC_BEP20, wait for network confirmation 2.