There was a large music festival in the park. My room was facing directly to this park and couldn't sleep during the stay.The festival is not their responsibility, but sure they knew about it. They couldn't change the room because the hotel was sold out (although I requested after the first night).
I gave them different card to make all the payment when checked in, but it have never applied.
I also learned that this hotel give priority to the guest shouting at them rather than the guest waiting patiently.