Short answer
Sign in to the client area, open Services, choose the service, select Manage and then Cancel Options. Choose End of Term to keep it until the paid term ends, or Immediate.
Before you cancel
Download anything you want to keep first. When a service ends, its files are deleted and we do not keep backups of cancelled services.
If you pay with a PayPal subscription, also cancel it in your PayPal account.
Questions people also ask
Do I get a refund?
Used services are not refundable. See the payment policy for the details.