I'm sorry that you've decided to cancel your subscription, but if there's anyway we can help the situation, then please consider us at your disposal.
As we have absolutely no access to your PayPal account, and as payments to Airliners.net are "triggered" by your setting up a monthly subscription with PayPal, you are the only person capable of cancelling subscriptions. Please log in to your PayPal account and look up any of your past payments to Airliners.net. Click on the subscription creation link, which can be found either at the top or the bottom of the page (you can also seach for this if you prefer), after which you will find the option "Cancel subscription".
Please be advised that deleting your user profile on Airliners.net does not likewise automatically cancel your PayPal subscription. To delete your profile from Airliners.net, log in, click on your username and click on the link entitled "Edit Profile" at the bottom of the page. On the Edit Profile page, check the box entitled "Delete this User" located at the bottom right of the page. Please note that PayPal subscriptions must be removed separately.
If you choose, you may forego deleting your username, in which case your account will automatically become inactive. At any time thereafter, you can activate it by simply resuming payment.
Airliners.net Customer Service & Support
OK, it wasn't an email, but still