In the "Wallet" section, click "Deposit":

You can top up your USDT in 2 ways:

If you already have cryptocurrency on another crypto wallet or exchange, send USDT to your address on Binaryx. Specify the amount, then go to the Wallet and complete the transaction.

NOTE THAT THE ADDRESSES FOR DEPOSITING IN USDT (MATIC) AND USDT (TRC20) ARE DIFFERENT. CAREFULLY CHECK THE ADDRESS AND NETWORK FOR THE DEPOSIT