Airtel — No speed and no coverage

Address:

Sebin c s. Chelattu house, neericode po. 683511

Hi sir,
i am fed up of complaining. After changing my plan from prepaid to post paid, i lost the speed of my connection and i lost the signal at home. Now i have to sit out side of my house or i depend on other services. There are 6 airtel connections including prepaid at home. All the connections are same. I feel the time has come to change the connection.