@Anonymous User
If you have no intentions of continuing with the 14 day free entertainment trial after the expiry date then to avoid the auto renew monthly subscription payment kicking in each month, i would suggest cancelling your pass at the earliest possible date (don't worry if you cancel early you will still get the full 14 day duration of your free trial to watch NowTV).
When you decide to cancel, make sure you follow all the cancellation steps right to the end and you will receive an email notification from NowTV within a few hours confirming you have cancelled their service.
One word of caution, to be on the safe side i would recommend not to cancel in the last 24 hrs of when your trial is finishing due to the NowTV auto computer system could disable your ability to cancel the trial pass offer (i.e the cancel button will turn grey and doesn't give you any access to cancel your pass).
