as a small business owner ... every large letter I paid postage for with Royal Mail and sent via a Tracked and Signed for delivery service always showed up on their website as "We've Got It" ... even after weeks and weeks and even months later when I put the Tracking number in it showed up on on their website as 'Weve Got It" ... so you will pay extra for Tracked delivery and be given a tracking number by the post office but you will never ever know if the recipient received it or not. The whole point of sending Tracked is to give you proof the buyer has received it. A huge, huge, relief for me was finding out about other couriers and because of this I have no more stress when posting my items now.