itshot.com sellings fake jewlery and then do not want to return your item new york, New York

A few weeks ago i bought a diamond dog tag from this website i called them to make sure i can return it they said i can do so without any fees. I get the item it has a fake appraisal from a company thats initials are similar to the real diamond appraisal company they have a fake certificate which looks exactly like it included with the item. I took it to get appraised it is not nearly what they had claimed. I came into the store a very rude person told me im beat and i have to pay a 15% restocking fee and whatever the person said over the phone he does not care about because his website states other.I sent the item back to the company and they had the audacity to return the item back to me? I have contact the BBB and my credit card company i hope no one buys from this website ever they are a complete fraud