Airtel
Sim Card not working

My Sim Card is showing as "Unregistered Sim" which shouldnt be as couple of weeks back i changed from Prepaid to Postpaid and it was working fine and all of asudden its giving me a meassage sying Unregistered Sim.

Kindly look into this matter... and revert back with a solution as soon as possible...

Company: Airtel
Country: India

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