AIRTEL : Stop my service without any intimation and my number is used by another user 9779999970

Location/place: Mohali

Name of company/service: Airtel

Hi,

I am Vikas Sharma, I am using 9779999970 number since 2010, but Unexpectedly without my permission and without any intimation to me my number is turn into inactive SIM and number is using by another customer HARSH…. Please do the needful on priority I am using my daily work by this number, it’s cost to hamper my daily activity..