Here you can exchange MIR or Visa/Master Card RUB for btc. Enter the amount you want to receive in BTC, or the amount of rubles you want to spend. Then enter the BTC address, to which you want to receive BTC.
With a strong jump in the rate (more than 1%), with a long wait or with late payment - the application can be recalculated at the rate at the time of receipt of funds.
When a transaction is canceled, a refund minus a payment system commission.