Airtel — airtel data card activation

Address:

Thane, Maharashtra, 421311

I have taken 2 data cards from airtel for my company at kalyan location.
My payment cheque was cleared on 29th oct. The data card is still not activated neither there is any verification call from the airtel verification team.
The concerned person sandesh gupta is not responding with proper answers for the activation purpose. There is only one answer it will be activated tommorrow from airtel person.
I wish to take strong action against this airtel service.
All third party vendors are involved in activation of data cards.
There is no proper service from airtel.
Contact person name sandesh gupta - [protected]
My email id - [protected]@gmail.com