Attention! BE SURE TO READ IT!
In this department, dirty hundred-dollar bills are issued with spots and dots, which then glow in their ultraviolet light. I made a mistake because I was in a hurry and did not check the money carefully given to me (the stains were not very noticeable). A week after the exchange, there was a need for Belarusian rubles and I carried the same bill for exchange. I was politely refused and informed that they do not work with dirty bills (but you can give it to people, but what will people do?), they recommended trying a currency terminal. So be careful and check all your money before and after the exchange.
They refused to exchange currency, referring to the stains on the bill, although nothing is visually visible. When asked what to do (go to the national bank or how to exchange and what are these invisible spots), the cashier replied that she did not know anything and called the next one, while she almost crushed my fingers with a plug.
The other two branches were closed, although they should be working according to the schedule.. so-so service