I've waited until now to reply to see if my maps would update after running the car for some time. The answer is NO and I did do everything correctly.
As for mountains and molehills, I don't think so as VAG has really complicated by making things work in different ways in different countries and also different models of Skoda in the same country, even though they have an MIB3 system.
I am told once again today by the Skoda UK online chat line that mapping updates can only be done in a Kamiq via OTA in the UK. This was also backed up by my dealer and to do this we have to be signed up to Skoda Connect and also be logged into the infotainment system as the Primary User. Once this is done, updates will not necessarily be immediate and they will be dependent on when they are released by Skoda.
I told my dealer that Bryfly had managed to do it, but I'd only realised today that he has a Karoq, not a Kamiq. The dealer said that although different models may have the MIB3 system, some have an imbedded SD card (not to be confused with an embedded e sim). A manual update will work in car that has an embedded SD card, but not in a car without one e.g. the Kamiq.
I cannot speak for other countries, except to say that I already knew that parameters differed between countries, which I pointed out before, so I have to assume that you in OZ have an SD card in the Kamiq, or maybe it's to do with your mapping being much smaller.
Anyway, it would appear that I wasn't logged in as the primary user in my car, which is probably why I've received no updates. I've now rectified that and already I've been allowed access to the shop and have made a free purchase of Traffication, so hopefully, mapping updates will follow in the fullness of time.
Once again mentioning mountains and molehills, I think it's a bloody poor show that VAG not only makes it complicated to do these things, but they don't give us enough info to make updates (in this case) easy to to do and understand. And don't forget Exkiwi, not everybody on the planet who buys a new car has your knowledge of computers, so what might come easy to you doesn't to them.
As for implying I'm thick, I did everything correctly following the Portal instructions, plus those from you and Bryfly. There just wasn't any info available to tell me that these instructions wouldn't work in a UK Kamiq.
A poor show on their part I think and this is echoed by many other owners here in the UK.