Booking.com Poor Service During Stay

I made a reservation through Booking.com and during my stay I paid 200 USD in cash. Despite this payment, I am not satisfied with the service I received and I want this 200 USD to be fully refunded. The service at the property was very bad and the overall experience did not match what I expected from a Booking.com reservation. Because of this, I do not find it fair that I lose the 200 USD I paid in cash. I kindly request that the 200 USD cash I paid be fully refunded to me as soon as possible and that this issue be resolved urgently.