Zee Tv — subscription cancellation

This is to bring to your notice that i had subscribed to zee5 app on my apple phone.
After using the app for the first month i later decided to cancel the subscription but despite cancelling the zee5 app subscription, i observed that my amount is getting deducted automatically every month from my account.
Last night my amount got deducted again for the second time. I kindly request you to look into the issue and get it resolved at the earliest