Yes.
Participating shops are among the ‘collection point’ options
@Duckeggbluebutton If you had selected the shop under a collection point option then eBay will have generated an address label which included a reference number.
A return address is also automatically included from the sellers account details, these can be declined so they don’t show on the label - but I believe that Royal Mail may identify that if required from the coded references etc
If the sender doesn’t use the generated label and instead hand writes the label whilst buying postage in the Post Office then it only includes the details they put down - most importantly the collection reference
I once had a package via the shop in a garage on the way to work that I couldn’t get because the sender hadn’t written the collection reference:
The garage would not accept delivery as there was no code to receive in the system & therefore they couldn’t tag it as ready nor identify it when anyone came to collect
There was a Royal Mail tracking reference from when they purchased postage. This showed it going back and forth from the local depot to the garage and ultimately on return to sender. I vaguely remember that they had also not put in a return address, and as it wasn’t the eBay reference there was nothing coded - so in that case it was in limbo
I needed it by a particular date, and the garage on the way to work gave an extra little time allowance to pick it up last minute on the way
Ultimately I claimed back on eBay, but the refund was delayed as the package was not missing but in transit - if I’m wrong and there was a return address then they didn’t pay back until the sender had accepted the return l, if I’m correct on my memory the system wouldn’t pay back until it was accepted as returned and needed more time (or an eBay customer service intervention ) to close the refund
In such a case with the buyer purchasing postage at the post office rather than buying the generated label than eBay would show the tracking due to a seller entering the reference number, but the collection reference wouldn’t be showing and would not be able to generate the collection email