To exchange USD coin ERC20 for VISA/MC RUB, you need to follow a few steps:
Fill out an application, indicating the amount of usdc for the exchange, VISA/MC card number, telegrams and e-mail.
Payment is made from a third-party payment systеm VISA.
Read the terms of the agreement for the provision of exchange services, if you accept them, check the appropriate box. And create an application.
Wait for 12 network confirmations after sending USDC.