Very disappointed. Rivets from falling

In label does it say, hand wash only. Nevertheless, the rivets fall the logo depict. After washing a second time with now missing 10 pieces so that I can no longer put the sweater, because it just looks terrible. Unfortunately, I have in front of buying not on the picture seen there are rivets, otherwise I would not buy the. Moreover, it is totally disadvantageous to have a sweater with hand wash