No doubt Paypal is good but on the negative side Paypal has well hidden the automated cancellation payment button and thus undertake the following listed action to cancel the automated payment please undertake following action:
Log in to your PayPal account.
Click the My Account tab.
Click the History subtab.
Click More filters, select Subscriptions and agreements, and then click Subscriptions.
Change the date back to the year the subscription was created, and then click Show.
Click Details next to the subscription.
Click Cancel Subscription.
The below action has to be undertaken at your end through your own Paypal account and a screen shot is also added which will answer your all queries as they say a picture speaks louder than 1000 words. Do not forget to checkout daily free stock tips to make money in Indian stock market.