If you are unsure of something that is on the internet, you aren't the first one to be caught up in some crazy mess. Someone probably has got into problems with scam sites so the best bet you have is to go on Google and type "Zwee.com scam" and I did just that. My instincts were right, every result was talking about the scam Zwee is. This site is some pretty bad news.
Moral of the Story: Don't buy from ZWEE