So, I posted on Nokia's Facebook page asking them about the update issues. See their response below:
Hi Robvd, seems there was a technical issue with the releases for some phones after we changed the System Updates to only be delivered via Wi-Fi - the technical team has corrected this in the Android 9.0 Pie release, which will be available within the next 4-7-days in South Africa. We apologise for the inconvenience, as it seems only a small portion of phones were affected that we've now picked up, thanks to the information you shared
Hi Robvd, seems there was a technical issue with the releases for some phones after we changed the System Updates to only be delivered via Wi-Fi - the technical team has corrected this in the Android 9.0 Pie release, which will be available within the next 4-7-days in South Africa. We apologise for the inconvenience, as it seems only a small portion of phones were affected that we've now picked up, thanks to the information you shared


