It comes at a time of low trust for the banking sector generally, with a Royal Commission finding disturbing things in Australia.
There has been a conduct and culture review here in NZ, but some are now calling for our own Royal Commission.
Herald business editor at large Liam Dann has been keeping a watchful eye on the saga, and came on the Front Page podcast to unravel the confusion.
We discussed how the controversy could change the banking sector, whether there's a crisis of public confidence, and whether more heads will roll.
For the interview, watch the podcast.
If you have questions about Herald investigations, or want to stay up to date on social media, you can find host Frances Cook on Facebook here, Instagram here and Twitter here.