I would strongly advise the amateur ebayer, like myself, NOT to use couriers unless absolutely necessary! I have NEVER had any trouble with the GPO, but decided to try Parcel2Go.com, as advertised on eBay,...
I recently had the misfortune of thinking I'd save myself and my buyers some money by sending my kiddies' old toys via courier instead of the Royal Mail! What an expensive mistake that has turned out to be! ...