Buyer hasn't received item

[kristy1973*1]

Hi. A buyer has informed me they haven't received their item. It was posted royal mail second class with no signature/tracking on 20 May. I printed a postage label from PayPal. If I refund the buyer, who do I ask for compensation-is it Royal Mail or PayPal?
Thanks in advance!! Kristy

[**peaseblossom**]

https://community.ebay.co.uk/t5/Postage-Topics/Missing-package-Do-I-claim-royal-mail-or-PayPal/m-p/5...