There are change offices. Bring a bit in Lira just until you locate the office and ATMs - enough to cover incidentals, any fares and tips. There is a P.T.T. (Post Office) also.
When I stayed in Aska 3 years ago they where able to change currency there it wasn’t much between the exchange shops and the hotel but tbh we used sterling in the shops and Lira for taxis bus and tips etc so we didn’t change much
Thank you both for your replies x