How to protect your rights when you are bitten by a bedbug in a hotel?

First, I went to the hotel students to let them know the existence of this bug, and then I showed them the bite marks. I used to stay in a hotel and was bitten by this bug. Later, they lowered my house price. At that time, I said it was impossible before, because the scar had already appeared. They took me to the hospital and paid a certain amount of medical expenses. After all, it is a small problem. How to claim compensation is not a standard. Later, it was settled through negotiation. If they don't compensate or even pay the room fee,