What I don't understand is why should I think about privacy if I won fairly? Why should I ask anyone for anything if it was fair from my side? That's some weird rhetoric going on here.

If the office is positioning itself as having a good reputation, why all these confidential sentiments?

I haven't been paid in three days.

They don't ask for anything, they don't ask for any verification, nothing at all.

For me personally, speed is more important than confidentiality. If verification would speed up the process, I would be happy to go through it.