It's true, that Tesonet operates both, NordVPN and ProtonVPN, but it's not true, that Tesonet has any ownership of ProtonMail, as far as I'm aware of. ProtonVPN seems to be a partnership between ProtonMail and Tesonet.
We have previously responded to these claims here: https://www.reddit.com/r/ProtonVPN/comments/8ww4h2/protonvpn...
And I already responded to your denial here:
https://news.ycombinator.com/item?id=17789334
You are a shady company at best.