You may not be able to cancel all transactions made via PayPal. However, you can cancel unclaimed payments. An unclaimed payment means the recipient hasn't received or accepted it. Here is how you can cancel these types of payments:
- Log into your PayPal account
- Click on Activity at the top of the screen
- Find the payment you want to cancel
- Click Cancel
- Click the Cancel Payment button to confirm
It’s important to note that if the payment remains unclaimed for 30 days, it'll be cancelled automatically and refunded to you.
In case of completed payments, you have 180 days from the time you made your payment to contact the vendor and request a refund. You can find the seller's contact details in the activity tab.
Also, when it comes to an unauthorised transaction, you can reach out to the Resolution Center at PayPal. Additionally, if you haven’t received the delivery from the seller, you can file a dispute against the seller to get a refund.