Paypal no longer re-imburse their fees charged. Any items incorrectly purchased that require a return and refund would be minus postage out and none refundable paypal fees, I.e. 3% of item cost + 30p admin fee.

Any items purchased and cancelled before posting out would incur paypal fees.

Any incorrect item purchased that requires a return for exchange would incur return postage out.

Any faulty or damaged items returned for exchange or refund would of course be free of any charges.