Airtel — my mobile number deactivated which by airtel

Address: Mysore, Karnataka, 570007

Sir,

My name is mohammed irfan sait. From last 8 years approximately i was using my airtel number [protected]. Suddenly on 19th nov around 7 pm it was showing not on registered networks then next day i visited airtel store request new sim. They it is completely deactivated give us one day time. Today they're saying it's completely deactivated due non usage but convinced by showing call details and recharge. They said they're helpless call to 12181 number they're saying it's completely deactivated due non usage but i have proof that this number is in usage from last 8 years approx. They again referd to airtel store.
My humble request you activate my number [protected]