When my previous Samsung was stolen, I went straight to the local office of Claro. They canceled the SIM, disabled the phone, and sold me a new phone with a replacement SIM using the same number (at my request), all in about 20 minutes, at a cost of just over 40K pesos, which was then ~200 USD. The lady who helped me so ably and professionally was the one who told me the thieves would just perform a factory reset on it, but assured me that in doing so the memory would be erased, leaving no trace of my personal data.
Granted, however, that was a permanent SIM, not a temporary one.
Nonetheless, I must say that every time I have visited a Claro store, they have knocked my socks off with their performance. Literally every single person I have dealt with has been fast, efficient, professional, friendly, and competent. How the hell they manage that in a country where low standards of customer service are the norm is utterly beyond me. One can only assume their training program involves a truly brutal process of winnowing the grain from the chaff.