SBP (Faster Payments System)
A Bank of Russia service for instant transfers between banks by phone number. Many exchangers pay out rubles via SBP — fast and convenient.
In more detail
SBP lets you receive rubles instantly by phone number between banks, so many exchangers use it for fast payouts. It is convenient and usually free for the recipient, but banks have limits and anti-fraud controls. Check that your bank is connected to SBP and that the details are entered correctly.