There are a few. One in the Orlovetz, one in the Perelik, and I think one in the Pamporovo. Got a great exchange rate in January of 2.98 lev to the pound.
There is one in the Mauragrets hotel.. None in Pamporovo. We were there last week and spent about 500 euros and taht included eating out every night and alot of drinking!!! it all adds up after lunches coffees, paying for toilet etc.. The alaska supermarket does the best rate if you have cash with you!!