I accidentally shipped an item via Royal Mail 48 Tracked when I should have used the prepaid label. I'm not worried about the additional cost I've incurred, but how do I show it as shipped? eBay doesn't seem to allow me to do that.
First see if you can add the new tracking to the order by going to the Order Details > Postage > dropdown menu (beside track package) > Add Tracking > + Additional Tracking Number.