Can I get a refund if I only stay for two days in a business trip?

If the hotel booked for 4 days and only stayed for 2 days, the merchant would refund the money the day after tomorrow. The hotel's usual practice is to get a full refund as long as you haven't stayed in the room before the day of check-in 18. Of course, unless there is a room clearly marked "non-refundable" when booking, because the room rate of this room is generally more favorable than the normal price.

But for some weekday rooms, if you pay the full amount and ask to check out 24 or 48 hours in advance, you can return them free of charge, depending on your terms. If you are not clear, you can ask the hotel staff.