Airtel — poor service in calls and data

Address:

Bangalore, Karnataka, 560026

Hi, am using airtel network and since from last month onwards am facing lots of issue with calls and data as well. Several times i had complained regarding this but there is no proper response from the airtel and issues has not resolved. Would like to escalate this with higher level. Can some one help me please.. Planning to switch to other network if this not resolved shortly.

Regards,
Ryavappa