Good point.

There are reported cases wherein the victim narrated that he/she was contacted at office/land line number; thus, he/she just waited for his/her signal to restore. Only to find out in the end that she was already victimized.

There is also a case wherein before nangyari ang SIM swap, the criminal kept on making calls and sending text messages to the victim; until the latter was irritated and turned off her cellphone.