Hotels with Air Conditioning in Baltic Sea Coast Poland West

"I was travelling with friends who had another room but had the same experience. There was a problem with the aircon and our room temperature was 26c. I reported this to reception and the chap went to another room to remotely set the temperature for me. In the mean time he suggested opening our window until the temperature became acceptable. If there was a problem with the aircon then why weren’t we notified on checking in? And why didn’t they set the temperature beforehand to 21c instead of leaving it at 26c? My friends had a similar experience and we overheard someone else at reception having the same problem. Also, there was no water in the room. "