Ebay has become a world marketplace. They offer very good buyer protection so you don't have to worry about what you buy. for example, if you don't get what you bought, if it's bad etc. There are a lot of great fabric sellers there. Actually, I buy a lot of things there like ink for my printers, all kinds of things cheaper and easier to find than in stores. If you decide to check it out be sure to look at feedback scores on the seller. I haven't had any problems but I check anyway.
I check all sellers scores. It's easy to join, they walk you through the steps. I've been buying and selling there for about 6 years with no problems.
Hope this helps!