Follow the steps below to cancel your subscriptions:
Login to your PayPal account.
Go to Settings then to Subscriptions.
Select My Money on the Settings Page.
Select My Money to see the link to your preapproved payments.
Select Update and you will be taken to a list of subscriptions. At the top of the page you will see another link to your preapprovals.
Clicking the preapproved payment plans will bring you to the list of Preapprovals you have in your PayPal account.
Select the Preapproval you wish to cancel and select Cancel.