Faulty product

I like this bra, but after wearing it for 1 month, the wire poked out through the fabric. I tried to return it on Amazon, and was not able. I hope the seller will provide me some way to return this bra, as it is a faulty product. I have used this type of bra before, and its just fine. I am appauled though, that after 1 month, the wire would break through on this bra, since it is such a very expensive bra.