JustDial.com — the ecs service is not getting stopped even after so many phone calls n emails send to them

I have been using the justdail ecs services from past almost 1 year but the issues started with the justdail from past six months.
They are just talking from one person to another and repeat nobody takes the action i have said that i want to stop my ecs services but no one cares about that, not the agent of justdial has shown his face after taking the cheque this is what happened with me.
Now after i completed my one year ecs agreement still they are not cancelling the services no one is ready for the cancellation. Kindly help me out if anything is possible