The stated exchange rate does not correspond to the actual one. If you are a tourist (especially if you are from Russia), you will be told that the course is now different.
I tried to change the currency today. The euro exchange rate was as follows: purchase 89.50, sale 91.50.
When asked to change the money, the guy at the checkout said that he was ready to change only at the rate of 88 soms for 1 euro.
In many places in Bishkek, there is such unfair practice towards tourists, especially Russians.