Mehdi, I don't know anything about the Iranian banks and/or if it's simple or not to send money to the foreign coutry. I suppose it's possible but quite complicated and expensive (it is hell expensive from an Austrian bank). I'd personally recomend to send cash in a letter (or hidden in a small book or something like that), I'm sending regullary cash to the States (not every American eBayer is accepting PayPal :-)) and it works and I got cash from buyers from the whole world. Where is the problem? You probably don't want to send the money for a Brain Maharadja, want you? Even if the envelope with your 10 or 20 dollars would be lost (and I'd say the chances are good it won't) and you would have to send it again, it's probably cheaper and much more simple than to run to the bank, to buy some money orders and so on...