Still no joy unfortunately.
I’ve looked at console logs, and it seems I’m just jot connecting to the app store… I ran the Corona sample code too (just with different ID’s).
I’m going to try on another couple of devices to see how I get on, including doing a full factory reset on my main testing iPhone.
Please keep following, I’ll write a comprehensive post-mortem, when I’ve finally got it sorted, so nobody else has to endure this nightmare.