If your phone or SIM linked to your NIN gets lost or stolen, donโt treat it as โnothing serious.โ
Report to the police FIRST and get it documented before attempting to retrieve or replace your SIM.
There have been cases where a stolen SIM was used for criminal activities, traced back to the original owner, and the person got arrested simply because there was no prior report.
In this era of rising criminality, protect yourself. Stay safe.