Size zero patch review: product doesn't work, won't refund money 2

I ordered "size zero" patch, which came with money back guarantee with no time limit to return. I used one package and returned 4 unopened. I waited a month for refund and got nothing. I called to see why and they claim they have no return. I did not get it back if the post office couldn't deliver it, they got it. They didn't have to sign anything so they pretend they didn't get it and sold it to somebody else.