Thanks scsi for putting Debbie in contact with me.

My hope is that the feedback I have given will help everyone, rather than just wave a magic wand to solve my particular challenges found.
Obviously they are working on the bugs - seems we may have found some they weren't aware of yet.

They have identified that people without valid South African ID numbers (essentially foreign nationals) does cause an issue. In my case, it was only non-S.A. citizens that got pulled through into the new profile.

Theoretically all currently active employees should have been pulled through. So any failure in that regard is not as intended...