OK, I give up. Just wanted to share my story. I got a new starter pack on Tuesday, for an old phone that my son could use, it was registered on Thursday. I requested a number, and was assigned one. I called from this number (quicker to save the number) to my regular phone. When I, just for kicks, sent an sms to this same new Virgin number, someone else replied "Who are you?". I phoned the number (my own new Virgin number) with another phone, and got someone else, who says he's had the number for five years.
While on hold to sort this out with the Virgin "help" line (he he he he, he he) I was cut off, and "Sim card not registered" appears on my phone. So, at regular rates, and holding on for what seems like a lifetime, because my Virgin phone doesn't work any more. I get the reply "Well this is a phone problem or a sim problem, have you tried it in another phone?" from "customer retention" (ha ha ha, he he, ha ha).
So, I give up. This is R50 in school fees, I'll take it like a man, BUT Weirgin Mobile and Tyre Centre will not be the next sim I buy.