Airtel — sim card registration fail from last 3 days

Address:	Barabanki, Uttar Pradesh, 754008
Website:	[email protected]

Dear sir/madam
I am devidutta bibhutiray using the no ([protected]) for last 8 to 10 years. From last 3 days my sim is showing of (Sim card registratin fail). When i ask the customer care they said me to go to the nearest airtel retail store with adhar card to register my number, but when i went to retail store 50 k. M away from my locality, they said it have been deactivated. So i want to why my life time validity sim have been deactivated by you. It is the primary no to my business. So i request you to activate my above said no as soon as possible.
Regards