Ask for someone who speaks english & amp; bring your passport
There 2 guys who speak enough english to do a transaction in english at the personal office that I am recomending. They work upstairs in the management offices and will come down to help you if requested.
I carry reduced size photocopies of my passport in my wallet. 75% of the time the copies will work just fine in BA. Personal accepts photocopies, no problem.
Wait on the line by the door. When it is your turn--say some like "Ingles, por favor".
--english, please. Chip is the argentine term for a sim card. Chip nuevo. Pago con cajetas--pay with cards. You can do it! Bring cash in pesos. Personal will not accept a foreign credit card. Buy up to 99 pesos in time and receive free bonuses of extra credit. The end of may, my 99 pesos purchase yieded 156 pesos worth of time. This was enough to do more than two weeks worth of heavy cel phone use. You also get bonuses on buying smaller amounts of time directly from them at their store.
The customer service people will check that your phone is unblocked and works with the chip. Have the customer service rep write down how much time you want to buy. You pay for everything at the cashiers just below street level. La caja.
This is easier than buying a chip on the street
Sorry about my street spanish skills and a bad ear