If the buyer is in the Channel Islands there's an issue due to Evri charging EU rates and Royal Mail charging UK rates. Opting out of using Evri should help - here: https://www.ebay.co.uk/ship/prf
Hi - Hes in the UK and I have already posted several of the same items with no problems to the UK from the same ad - But when he tries to by it says we dont deliver to the UK