Please make sure that the crypto wallet addresses you send and withdraw from are correct.
After creating your user information, copy the wallet address created specifically for you from the Dashboard section. Send USDT with ERC20 network or BUSD & BNB with BSC20 network to the wallet address you have reached. Then go to the trade page.
When you come to the first Select A Token Option, enter the amount you want to purchase.
Example: 1000 USDT
Then select the USDT - BNB - BUSD asset from the second Select A Token section.