FOREX is not dealing with RUB at the moment because of the war in Ukraine.
I Saudi Arabia, the currency used is called rial and has the currency code SAR. One rial ís divided into 100 hallalah.
Tip! Convert some money before you travel, so that you don't need to find an ATM first thing upon arrival.
Delivery to nearest post agent
Save the receipt and change back for free
Buy currency in advance, no need to search for ATMs