eBay

I see a guy on here stating he is “ Sponsored” by National Treasures” what dies that mean and is this possible?

I feel that once my items get to the buyer and I am 100% positive, with only 3 out or in the mail, all with tracking, and ebay has 320.00 dollars of mine, and have goven me 23.00 and 10? That is garbage! I want everything that has been delivered! Onc...