This is getting off-topic, but I found it interesting so I'll include more details anyway.
In a lot of cases, all the fuss is to return amounts that are tiny, and yet the companies need to keep reaching out and trying to convince people. I got $0.06 (2) from my current employer. Because I've moved countries with them, I ended up falling in the category of needing to provide some bank/tax details. Of course, I wanted to log in with the silliest OS I could think of to test/mess with the tracking dashboard, and so somehow I managed to enter my DOB wrong, which even further increased the back-and-forward and emails involved (I was in the project, so the Payroll peeps involved probably didn't hold it against me).
The re-calculation which led to the payment actually worked out that I had been underpaid in come calculations, but overpaid by far more (although still very, very little) in others. The company believed they couldn't offset, so all the fuss was for a tiny amount, which I felt I really wasn't owed anyway. Also unfortunate, was that if any former employee didn't bother to claim the amount because it's so small it's not worth the fuss, it just leads to more work in follow-ups.
New Zealand Holidays Act is quite an interesting area in general, in a how-can-it-possibly-be-this-hard kind of way. I think it contributes to the reputation of NZ payroll being one of the trickiest in the world.
1) https://thespinoff.co.nz/business/27-06-2019/cheat-sheet-wha...