To exchange BTC for Sberbank RUB, you need to follow several steps:
Make an application, indicating the amount of btc for exchange, Sberbank card number, account number, phone number and e-mail.
Payment is made from Sberbank cards.
Read the terms of the agreement for the provision of exchange services, if you accept them, put a tick in the appropriate field. And create an application.
After sending BTC, wait for 1 network confirmation.