I've been here three weeks now, and have most of the basics figured out. But definitely one of the hardest problems I've had to solve in Argentina so far was how to get a SIM card in Buenos Aires and ultimately top it up with funds. Why Movistar? There are two large GSM cell carriers in Buenos Aires: Claro and Movistar. Having investigated them both prior to moving to Buenos Aires, I came to the conclusion that Movistar offered the best deal for pay as you go plans. First, why Pay As You Go? Unfortunately unless you're a local and have a DNI card (a local resident card) you can't get a phone on ...