This is one site that you should stay away from. They have an extensive USER AGREEMENT and FEE SCHEDULE that they charge their 'sellers.
However, if you are a buyer and run into a problem they state that they are only a "marketplace" and are not responsible for their sellers illegal activities.
I purchased a product because the seller advertised it was Pyrex. It was counterfeit. I wrote the seller October 31,2014. He responded Jan 1,2015 in an email that was insulting and name calling. Ioffer.com could care less when I contacted them.