Sheraton complaint: racism

First of all, my English is not good, I am Asian, when I checked into the room ten minutes later, someone came to my room and told me that I thought I was smoking, I am not even 21 years old, how could I smoke, I repeatedly denied that I said I did not smoke , you can smell it, then I received a call from the front desk, and a fine of $100, I went downstairs to inquire about this matter, the front desk found an employee named Ethan to communicate with me, he told me that his manager suddenly insisted on me check out? When I was upstairs, no one told me. When I went downstairs to consult, I was told that I needed to check out, and told me that I would be refunded along with the deposit for the fine room fee. I asked ethan to smell my room, and he He also said that there was no smell, but he said that his manager insisted that I check out. I ed to him many times, saying that because they were not sure if I smoked, as long as I checked out, all my fees would be refunded to Me, I agreed, but when I left the hotel and called again, the manager told me that I would not be refunded and that I would be fined $500? I wasn’t even in their room for half an hour