Recently there are many contact number when you call, it is a dead line.
Heard from one of the ML, her friends phone was cut off by the telcom with no reasons at all.
And some have received sms to re-register their sim card, failing to do so will risk having their sim card voided.
If that is so, AV must be doing the easiest way to solve the problem.
Get the telcom to cut off those line.