I want to cancel the subscription.
If you downloaded the trial version from App / iTune Store then Apple store will bill you automatically after 30 days.
You need to make sure you cancel your subscription before 30 days. We have no access to your account and cannot reach them on your behalf.
In Windows Store – they will ask you to confirm that you agree with purchase so you can say No.
And with the account created on our website – we do nothing – the only thing it’s that once the trial expires you will not be able to use it until you purchase it.