eBay

How can I block some member ID to click buy my item? Because I got a buyer bought my items for a few times but she always need to return item after use them for 10 - 12 days before over valid time to return. I loose the postage and products with this...

what forms you need to bring your products across the border? Do you need an address in the states to be able to mail from there. and where can u get these forms from? Is it expensive?