Sounds like you have a Recurring Payment or Subscription setup.
Here's how to check:
Login to your account.
Click the Settings (gear) icon near the top of the page.
Under the "Payment" section.
Select "Manage Pre-approved Payments".
Select the merchant whose agreement you want to cancel and click "Cancel".
Click Cancel Profile to confirm your request.
* Cancelling a subscription cancels all future scheduled payments of that subscription.
* A subscription can be cancelled up until the day of the next scheduled payment.
