The service is zero, there is a second cash register, but it is closed, the entire queue of hundreds of people stands at one cash register, it gives a clear impression that the cashier is working as slowly as possible, as a result, people change currency to each other in the queue, because the queue is at any time for about two hours if you came two hours before lunch, it's not a fact that you will make it before lunch.
I have been in this bank for a long time, probably since the opening. Then there were employees who were not very literate in banking, maybe it's better now...