Look. i'm from romania. here isn't enabled the buying credits via SMS system. i have a friend in poland. if he sends an SMS and receives the code, and then he tells me the code and iI WILL USE HIS CODE to buy credits, WILL IT WORK? (i mean if the sms is sent from poland and the code used from romania). another problem is: will that UNLOCK me so that i'll can sell cards on the market? THANX A LOT. best wishes to you.