Hetzner deleted my server just one week after my payment due date. My credit card failed the payment for some reason. I didn’t notice this because I was ill with Covid. They sent me one email (or at least, I received only one email) as a warning. I only realized the server was gone when my services stopped working. I’m not sure if such a short warning time is common practice among hosting companies, or if it’s unique to Hetzner.