It was part of the blog post Udemy posted.[0]

"Many of you have asked about what happened to the money received from Troy’s course. There was none. As the fraudulent instructor had created coupon codes to allow students free access to the course, no money was exchanged in this process."

[0] https://blog.udemy.com/maintaining-the-integrity-of-our-udem...

If true, this doesn't account for the other courses where fraud has been committed and money did exchange hands. I had no code, I paid real money for something. Maybe it was a v similar course; I've not been near my login password to verify this is the exact course I joined (was last winter), but I have a good memory for titles. I could be wrong and joined a different course, but I suspect Udemy might be lying about that, since the course was open to other registration!

This supposed lie is so easy to disprove. If a single person brought forward their receipt, it'd be a lie.

But in a year, no one has. So it's almost certainly not a lie.

When I get to the right machine, I'll have a look and come back to you. I'm certainly fallible. Yet... There are the other courses to consider in any case