Airtel — worst customer service ever experienced

Hi ,

I got my airtel sim, 5 years back. But those people called me for proof verification and barred my incoming and outgoing calls without any prior intimation. And i talked to the supervisor and renewed my connection. With in 2 weeks they disconnected my number totally (Asusual without any prior intimation) . i lost al my sim contacts. This is due to lack of communication between departments of the service provider. NEVER GO FOR AIRTEL. This is my suggestion.