I've been very patient with someone on the forum here who has a high trade rate, but I haven't received my figures in TWO MONTHS.

I sent him my part of the bargain on August 13th. He then sent me the wrong figures on September 6th. So, after many PMs on the forum, I sent the wrong figures back to him, but here I am, still waiting. He gave me a tracking number for my figures, but it has been showing up as an unknown tracking number for about 2 weeks.
I'm fairly new to this forum, so I would like some feedback before I go and post in the bad traders forum (because I still want my figures)... I think two months is way to long for a trade to continue, but maybe some of you have gone through this as well?
Now, when I PM him, they don't send - it just sits in my outbox. Can people block/ignore PMs here?