Airtel — regarding airtel store

Address:

Kota, Rajasthan, 324001

Dear airtel
I want to complaint about your airtel store employees which is situated in saraswati colony near deepshree bakery baran road kota rajasthan -324001. So recently i visited the airtel store because i want to upgrade my 2g sim card to 4g.
So i went there and asked for new sim card and the procedure then they tell me that you have to give a charge of rs 30 for the sim upgrade but i already asked earlier about the same from airtel customer care and they told me that the service is free of cost. But the employee of airtel store denied that there is no such scheme and the behaviour of one of the person is very rude. So i request you to please take strict action towards them. They are fooling people and thought we are illetrate and this type of behaviour from any telecommunication company service center will not be tolerated. So i kindly request you to please take strict action against them.

Thank you