Airtel — wrong plan given by airtel outlet executive

Address:

Bangalore, Karnataka

Hi, I am shamanth i had purchased airtel 4g wifi device in chandra layout outlet from executive PREETHI.I had asked her to give me some best unlimited plan, Preethi suggested me to take 1995 unlimited plan, but she has given me some limited plan. I use this connection in my office that is the reason why i took unlimited plan. Now i got bill amount of Rs.5715. i got message on the next day when i took the connection, when i asked about this message with executive preethi. She said the plan is updating and not to worry about it. my 4g number is :[protected] please help us from this froad sale .