Airtel — airtel 4g is not working. and 3g is fluctuating

Address:

Solan, Himachal Pradesh, 173205

Sir/mam,
I am unable to use 4g internet from last 2 months on my airtel no. Only h+ to h fluctuation is going on & i am unable to access internet. Service engineer has visited the site he has checked the handset & network. Both are fine. Even i can access 4g of other service provider on my handset. Customer care even told me to replace sim card and even change the same. Still problem is not getting resolve. Every month they are charging around rs1050. And i am unable use the services. I have complained several time so many service request generated. No action taken till date.
My mobile no is [protected].
Regards,
Vishwas garg