Reliance Bigtv — no service from 1 month

I have paid for one year subscription in april 2017 and it is available till 2018 april. My smart card has been damaged and called customer care to replace it but there is no response from them. Every time they were saying to contact tomorrow. So i want to deactivate my account and return my money for remaining months subscription.

Please return money as soon as possible

Smart card no[protected]