Flies force us to vacate

My Wife bought us a 2 night stay at the Tree house lodge on Group on, they expected us to relax in an fly infested place for two nights, 100 dreds of flies every where. We tried but after the 2nd hour we could not take it any more. We had to go home and asked them for a refund. Tree house lodge nor Groupon will assist and all we asked for was the money we paid for the lodge to be returned. Now we are asking for lodge fees travel fees and food fees as we especially bought special foods and drink for our 2 nights away.