Reviving this thread to ask a question:
I'm on Personal (prepago) and yesterday I had 67 pesos of credits, and today 54 pesos.
I didn't make any call, didn't use the phone, didn't activate internet but I received a call from an Argentine mobile -> is it possible that I pay for a call I receive?
If you have added credit to your phone recently on any sort of bonus day then that is probably why. Promo credit doesn't last forever, if you don't use it (with in 10 days for Personal, 7 days for movistar), you loose it. Disappearing credit is often just some bonus credit evaporating. Either way you can go to personal.com.ar or movistar.com.ar and check out what you are getting charged for.I for one am getting sick of adding 100 in credit.. make virtually no calls and suddenly being told my balance is 0.
I just called Personal to complain that in Caballito I constantly lose my signal, so they assume my new iPhone 5 is the problem and I assured them it wasn't since I was abroad and it worked perfectly. They didn't want to take the blame so the credited me $50 for the next three months. How generous of them. LOL.
That's actually not quite as dumb as it sounds. If your iphone 5 has a nano sim which has been cut down from a full sized one (which is every SIM I've ever seen from personal) it's not unlikely that the sim itself could be breaking down and causing serious connection problems. You should at least try getting a new sim and see if that helps.
Of course it's also probable that the service is just shit, as it usually is.