i have a habit of bidding on multiple cards of the same card. when i happen to win one i'm not going to buy duplicates. i know thats not an excuse but yea. ive always paid for everything i buy, so there is no issue there, just cant see paying for multiples of the same exact card when its going into pc anyway.
also, here is how he responded to my message to him...
"thanks for letting me know, the person that did that had a bad sale with me a couple months ago, since then, he's been messing with my listings, i tried blocking him, but all he does is opening new accounts and bidding on my stuff...sorry for the inconvenience..."