Tower T81532RD Kitchen Knife Set with Acrylic Knife Block, Damascus Effect, Stainless Steel Blades, Rose Gold and Black, 5 Pieces

Got a set of these for my daughter for Christmas opened up the box and the two smaller knives are missing from the box how can I get these ?

The rose gold is coming off the knives and some of them look more gold now. One knife has to started to ‘rust’ near the handle after a few washed

One of the knives has broken already and we’ve had them 3 days. What do we do please?