www.JKCRings.com review: The seller sold me cheap ring and didn't want to refund 2

I found the advertisement of www.JKCRings.com. I ordered the ring, which cost $156. I got the parcel three weeks later and when I opened it, I found small price tag. I checked it and found out that the ring cost $26.99. I immediately contacted the seller and asked to return money back. The seller refused and said that it was their policy, and he offered me only exchange. He said that I could change the ring. I don’t want this ring, I want money back.