Can rust on bracket

I ordered the can, because I wanted to engrave it and then give to a child.
The box arrived here well packed, however, was smeared with a brown, strong mineral smelling substance. The brackets are difficult to open and close. For everyday school life I find it therefore unsuitable. For the can not care instructions contained. When I was of stainless steel is considered that I may normal pack with the dishwasher. But after the first wash (where, incidentally, the greasy substance, so went off and no longer smell) these little rusty wire hanger. That should not be, in my view.
Again I would not order this lunchbox so. Too Bad.
If she had better strap and cleaned better before delivery, it may be a great lunchbox for school life, as it has a great size and thanks to steel is a great alternative to plastic and aluminum.