I sold a lovely pair of black startright boots and listed them as a size 12. I have received a message from eBay telling me that a case has been opened against me because the boots are not a size 12, they are a size 13 according to the buyer. Without the boots in front of me, i can't dispute this - although I have just this week had my daughter measured and fitted with startright school shoes ready for the new school year and she is now a size 13. I'm sure the boots are a size 12. I have been told to give them a partial refund which is fine. I can't see how to issue a refund on PayPal without the buyers email address. I've messages the buyer, requesting their email address so that I can refund them but they haven't replied. What is the next step? I really think they are taking the proverbial but I'm willing to give them a refund - I just don't know how to give it to them.