i finally received the BTC after 5 or 6 days

nope that's not how bitmarket works. The bitcoins don't appear at all in your account until the seller has received the payment. What happened is that the seller released the BTC, they then appeared normally in my account but after I tried to withdraw them to an external wallet they got frozen for no reason! now bitmarket is asking for donations. It's just what I thought: they put the BTC as frozen as a mean of postponing the withdrawals because they just can't pay!

I have now received my BTC though. Not sure how long it took. I'm pretty sure they appeared as frozen in bitmarket at D+6 but according to my wallet the transaction was made at D+5

it's been 6 days and my BTC are still frozen!

Thanks Akka! I too have been using bitmarket for a couple of years with no problem. I have explained my situation in details here https://bitcointalk.org/index.php?topic=129851.0
(Sorry for the double post, i found this thread after I have created mine)
To be precise my transaction was split between 2 sellers. I was able to make one withdrawal but the BTC were frozen for the second one. My bitmarket nick is the same as in this forum

yehp thanks Stephen Gornick! i saw it after I posted

same problem here. I hope it's just an over-zealous anti fraud system. If not, it may mean that they just can't pay what they owe!

Hello,
I'm posting this here because i don't have the choice to post in a more appropriate topic. I've seen people getting their BTC after posting their problem under "Bitcoin Forum > Economy > Marketplace > BitMarket.Eu - ownership changed (in a way)" and they had the same problem as me.

Here is what happened:
On december 2nd I made a smooth transaction for buying 10.03 BTC via SEPA on bitmarket.eu
On december 5th after the seller has received my money transfer and sent the BTC to my bitmarket account, I tried to withdraw my BTC but they got frozen by bitmarket.eu for no reason (they are normally frozen when you initiate a sell transaction which I didn't, I just tried to withdraw).
On december 6th I wrote to admin but still no answer after 3 days

If an admin of bitmarket reads this can you please unfreeze my BTC (my username is bm2013), I will update here to say that everything is back to normal.

Thanks!