Hello, how can I resell the hotel I booked in Hong Kong? It was booked by a travel agency.

You booked a room at the travel agency and paid for it. You should ask the travel agency for a refund. Under normal circumstances, as long as you tell me to check out in advance, the hotel will refund the rest of the room fee to the travel agency and the travel agency will refund it to you, but there may be a certain handling fee. Some informal travel agencies embezzle the hotel's refund and then tell you not to refund it. Your experience may be that you didn't check out in advance or didn't find a regular travel agency. I have always booked a room on the real travel website. There is no handling fee for them to check out early. As long as an email tells them to check out, they can refund all the room fees for staying for several nights. Very reliable. You can go to the real travel network in the future!