Someone buying a SIM card at Claro on my behalf

Hi, I'm traveling down to Buenos Aires with a group of friends and one of them is getting there two days early. I am hoping that they may be able to buy us local SIM cards before we get there, but I know that you have to have a passport to get a local SIM card. If we were to give him copies of all of our passports, would he be able to buy them on our behalf?