The MoonPay Account wallet does have an address that you can use to receive ERC-20 tokens.
You can also transfer out any ERC-20 tokens of the MoonPay Account balance to an Ethereum wallet address from your MoonPay Account.
You can also transfer out any ERC-20 tokens of the MoonPay Account balance to an Ethereum wallet address from your MoonPay Account, just make sure to have enough balance to cover the transfer and the fees involved.