can you both post the buyer's nickname or e-mail here?
I also sold BTC on Sept. 21st and did not receive the money, nor did the buyer reply. His nickname was macaraja, funny thing - same name that mt.gox uses on it's french bank account!
But a couple of days ago the guys from bitmarket unfroze the BTC and kicked the guy

I still have 10 BTC frozen since many days, on transaction 14720 with user ArmandTorrell, who claims to have sent money to my account, but forgot 1 digit at the end and "I should have got it". Obviously I didn't get the transfer, any my bank said that such transfers are returned immediately without trying to find a similar account number or anything like that.
Now I requested to finally cancel this transaction by admin 3 days ago, but bitmarket admin is not respodning.
Again I REQUEST that the transaction 14720 is CANCELLED AS SOON AS POSSIBLE.
The buyer is not responding any more.
This is making me so angry.
Bitmarket.eu is the place where I lost a lot of money because of buyers
choosing not to pay when the price of BTC drops and my BTC being blocked for
days.
I will not sell any more through Bitmarket until a system is put in place
that ensures that I can unlock my money in max. 24 hours in case of
non-responding buyer.
This is absolutely unacceptable what is happening now.
Does someone there hear me?