Hi Schaves,
Thank you for contacting the PayPal Community Forum, and welcome as a new member!
It is not possible to cancel an order on PayPal, and this can only be completed with the merchant directly. It also depends on the merchant's Terms and Conditions. In this case, as the shipping had already processed, the merchant is under no obligation to cancel the order, and issue a refund to you.
PayPal's Buyer Protection will cover you in the event the item is not received, or the item received differs from the item you originally purchased. More information on the Buyer Protection Policy can be found here - https://www.paypal.com/us/webapps/mpp/paypal-safety-and-security.
- Siobhan
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