Airtel — connectivity issue and slow internet

Address:

Thiruvananthapuram, Kerala, 695004

I am living in trivandrum, kerala within the corporation limits. For the past few months the network connectivity is too slow. I had contacted airtel several times. Each time they register a compliant and do nothing to resolve it. I had been a airtel user for last 10 years. If i cant have a proper network and a decent internet speed in kerala's capital, where would i expect airtel to provide coverage. Airtel doesn't even pay her to customers complaints. This can be seen by the constantly decreasing customers. I don't find another way but to port from the network provider to someone who is reliable.