Airtel — bad/slow service

Address:

Chennai, Tamil Nadu

I have been requested to change network portability from reliance to airtel more than a week completed still not activated my existing network disconnected immediately when i requested to change network, reliance also worst company in service too, when i contact airtel service call center i choosen option as english, but they are talking in hindi which i dont know very bad service i didnt expected this from airtle service.
Please mobile consumers do not preper airtel for net work portability.