Airtel — internet problem from last one month

I have been contacting customer care members from almost a month and m daily listening same line from them again n again whenever i call then that my internet will work after 4 hours after u restart your phone .
I have been given reference number a lot of times but there is no improvement in my internet speed .i have even given them the minutest details that the network problem is only in my locality n this is only the reason m still using airtel that it's faster then others where it works