How do I leave feedback for a trade that is never completed? I sent my cards and according to the tracking number, the cards have been received. I have not received my cards and communication with the trader is unsatisfactory at best. He has not marked my cards as received. The trader has solid feedback up until this point so the "threat" of negative feedback might be enough motivation to get this resolved. Any suggestions?

The trade can be found here:
http://deckbox.org/trades/35030?s=15769

See a related post at http://deckbox.org/forum/viewtopic.php?pid=28347#p28347 that references the same trader. I recommend that you both file complaints with your local post office. Multiple complaints against the same individual are more likely to get attention than isolated reports of potential fraud.