Sorry that guy is being a dick. You kinda have chalk this one up as an expensive learning experience. I had someone send me the card I bought, and then, by mistake sent me another card right after that they had sold to someone else (a bowman chrome red refractor auto). I sent it back because (a) it's the right thing to do and (b) I didn't want the bad karma. They hooked me up with a refund on the card I did buy. I've also been burnt on a trade where I sent cards and the other person sent me an emply top loader. Some people just like to ruin things for everyone else...
My son's COMC port is loaded! Check it out! Many deals to be had!