Hi, the buyer doesn't seem to know any different as I tried to explain why it hasn't been posted.

To the buyer it all seems normal, the tracking number is shown to them and the item appears posted to them.

The items are in both worlds i.e. yet to be posted and posted with tracking.

I spoke to eBay again today and after lots of back and forth to bring the new eBay contact up to speed, they handed me over to the technical department.

Who knows what's going on, I'm guessing it some technical issues they don't know how to resolve.