Because gold is particularly soft and malleable, a slight bump will lead to deformation. So, first of all, you should rule out the problems you think (such as where to hang them) and look carefully. If you can rule out the possibility of man-made, you can complain directly to the store manager or store manager in Zhou Dasheng. If it is not properly solved, you can complain to the Consumers Association. Since things have been lost, we might as well get them back. The most important thing is mentality. Don't make your body angry or irrational because of this. I wish you good health, get your things back as soon as possible or solve this bad thing satisfactorily as soon as possible!