Update and add your new tracking details as below, showing it has been posted. Best to use a laptop /PC for this, not the app or mobile browser, Chrome seems to work well, too.
- Go to "Orders Paid & Dispatched"
- Click on "View order details"
- Within the "Postage" section there's a small dropdown arrow next to "Track Package" - click on that.
- Click on the "Add tracking" option
- A box will come up with the current tracking number . Delete that and replace it with your tracking.
@0live0il71