How can stop future payments permanently ?
i want to cancel my account.
If you have a subscription it will show up at my.sparkol.com/invoices. You will see a 'cancel' link under any active subscriptions. Once you have cancelled your subscription you are able to continue to use the software up until the date that the next payment would have been due.
Just make sure to cancel your subscription no less than 3 days before the renewal date to avoid future renewal charges.