Someone has up for bid 3 shirts on buy it now for 21.00. I sent an email asking if I could buy just one. They said yeah it would cost 10.00 including shipping. How do I go about buying just one shirt from a buy it now auction for 3? Is it something I have to work out between the seller or what?.--Answer1:It is completely unique to each seller. You should first check their other listings to see if there is a one shirt listing, if so, purchase it through that listing. If you dont find one, talk to the seller and they should send a paypal message stating the sale unless the seller puts one up on eBay after your request. Its possible, it happens to me a lot when I buy things. Enjoy your shirt, and good luck