Your items are now under the new Ebay postal system 'Simple Delivery'.
The buyer chooses the service they want from your listing and, once payment is made, you can download the QR code or print a label.
Details are here:
https://www.ebay.co.uk/help/selling/posting-items/setting-postage-options/simple-delivery?id=5575&st...
You will have to contact Ebay Customer services and ask them to change the tracking.
Payments to sellers are now routinely held until after delivery or, in some cases, if positive feedback is received.
You should update yourself about the new payment Ts & Cs as well.
"There are two ways to be fooled. One is to believe what isn't true; the other is to refuse to believe what is true.”
Søren Kierkegaard, Danish philosopher (1813 - 1855)