If you are having this issue with Australia Post tracking numbers, there is a workaround. Australia Post tracking number has two formats, a long and a short one. They both attach to the same article in Auspost system. You can provide either one to buyer to start with. And if the eBay tracking is stuck not being updated. Just change your tracking from one to the other format after it is delivered. Upon tracking number change, eBay will fetch again with the ''new'' tracking number and will show the latest delivery status.