Airtel — unauthorised activation of vas by airtel and charges

Address:

Coimbatore, Tamil Nadu

We had taken 6 connections ([protected], [protected], [protected], [protected], [protected], [protected], [protected]) in the company name of kobolt robotics pvt ltd and have noted that airtel has with no prior information to us activated the vas at different times to different numbers thus charging huge charges. Inspite of complaints they refuse to reimburse the charges which is fraudulent.
We dont understand why the charges can not be reversed as this was not requested by us