Trai — idea company

Idea company is not providing the 4g service.. But they are charging for 4g service.
I compliant has internet is not working in my location.. They lodge a complaint... Network team came and they checked in location, and confirmed their is no 4 g coverage in this location..
But customer service is closing the complaint as unresolved and they are saying like, we are providing maximum network... Its not 4 g service/ network.
But idea company id charging for 4g service in my location...