Thank you for the replies.

Real estate agency never send me or made sale contract.
At this stage only document I have is Receipt of payment for the shop and 2% transfer fee.
2% commision fee were tansfered to the salesman's bank account directrly and I'm waiting for this reciept. And another suspicious thing is this salesman doesn't reply my email anymore after he got his 2% commision.
But I do have proof of bank transfer regards to all the payments.

And Wayneis, I'll keep updating my thread if this can help to other peoples.