Comforters and wrong sizes

Please make sure when ever you buy a comforter that it is the right size. I had a very bad experience at a place in Middleburg with this. They told me that it is a queen size but once I got home it was way to small. I returned to the shop and to my surprize the owner told me"sorry cant give you bigger one, otherwise you have to pay more for it". I told her that I'm not going to be liable for any of this because this is a double beds comforter. Then she must give my money back. She said ok I'll pay it in you bank account. After a weeks fighting and messaging I got my money back. So to anyone out there please make sure of the measurements before you leave any shop. Thanks.