If you buy a wedding quilt, you won't change it if there is no quality problem. If you want to change it, you must take the shopping receipt. You can return the goods within seven days, but you can't exchange them after a few days. If it is really not suitable to buy, you can. Communicate well with the merchants. If it doesn't affect the secondary consumption, see if the merchant agrees to change it for you. Usually it won't be returned after seven days.