Liufu is an old jewelry brand in Hong Kong, and it has done well in Hong Kong, but most of the mainland markets are franchisees, so the management is not necessarily very good. In your case, it can be repaired free of charge according to the regulations of Liu Fu Company, but because of the franchisee, the franchisee boss may not want to pay the repair fee himself, so he will let you pay. You can be tough and get free maintenance, or you can go to the headquarters in Liu Fu and complain.