Sounds like a Automatic payment
you can disable it

- On the main menu, click the gear icon on the right to access your account settings.
Next, click on the Payments on the submenu that will appear below the main one.

- To see your recurring payments, click on Manage automatic payments.

On the next page, you should see all the automatic payments on the left. Make sure you've selected Show Active, so you can only see the current payments you're making.
- Click on the payment you wish to stop to review its details. These will appear on the right. Take a look at its Status, which will be Active by default, and click on the Cancel button.
- PayPal will now ask you to confirm your decision. Click on Cancel Automatic Payments to stop making payments to the service provider.