Not taking responsibility

I went back for my ring that needed to be resized. It was still wrong. Their excuse was I only wanted it two sizes down. I had given them another ring to measure with and that would of meant my new ring would have to be smaller than two sizes. They did not tell me this. If I had known I would have paid for the other size downs. But I got my ring and it was still wrong.the reason I gave it in was so I could wear it when I got it. So now it is their responsibility to get it right and as soon as possible. I already waited a month and only for it to be still wrong. Im so disappointed and heart sore. If it wasn't my engagement ring I would ask for my money back. I will always have negative connotations with NWJ and my ring because of their staff and service. After I finally get my ring back I will never step foot in that store again.