Airtel — 4g lte network issue

Address:

Ahmedabad, Gujarat, 380015

Since 3 month i was unable to use 4g connection speed at my location and surprise thing is that full network with 4g data connection shown in my mobile. I was complaint many times to airtel but no body to interested to resolve issue also my each and every complaint gone to be on hold by airtel.
So this is my last request to airtel to please resolve it asap otherwise i need to change my service provider.

Airtel number : [protected] – post-paid connection.
Location : 8th floor, mondeal heights, near wide angle cinema, iscon cross road, sg highway, ahmedabad.