Airtel 4G — sim not working no[protected]

Address:	Nagpur, Maharashtra, 440027
Website:	[email protected]

Hello sir/madam
My airtel sim ([protected]) closed for 3moths, i made lots of effort but still didn't get solution. What should i do please help.
I tried all my best, kindly help as early as possible.

This sim registered on my brother name nilesh kale, he also link his adhar card to the sim but no work.
I may request you provide some solution as soon as possible.
Thanking you,

Sharda agre