Horrible service

I phoned Sylvester to move our arrival date but they were full and could not accommodate me, I then proceeded to cancel our booking that I made approximately 2 months in advance and was paid in full 30 days before arrival date . I explained our situation and the manager refused to reimburse me. I explained to him that according the CPA that he is not allowed to keep my full refund and that it must be "reasonable". His invoice does not supersede the law. He didn't agree with this statement (I can understand that) and he continued to yell at me, very unprofessional and hung up on me. I tried to phone him numerous times but to no avail. I was calm en respectful the whole time and did not deserve to be treated in such a manner. I will definitely not support this business in the future.