It seems there are several threads popping up about what appears to be the same issue:
http://www.project1999.org/forums/sh...ad.php?t=24053
http://www.project1999.org/forums/sh...ad.php?t=24112
http://www.project1999.org/forums/sh...ad.php?t=23998
http://www.project1999.org/forums/sh...ad.php?t=24029
Apparently if you receive items from a Quest turn in and try to sell them to a vendor, you get the "You receive X monies for your Y" message but you don't actually get any of the coin. Apparently zoning does not make the coin appear in your inventory either.
As I haven't noticed an official response in any of the threads yet, I figured consolidating them and making one thread to follow might be easier.