That's a very uncharitable way of dismissing my claim that the parent claim of the service stopping automatically when you go over your credits is not true.
That's one thing. The second thing, I'm happy for you that you have more information about their pricing system than their pricing page and terms of service page state.
It's inaccurate to say that it isn't purely prepaid, because that could be taken to mean that some services are available to be postpaid, with a due date. Here you can see that a negative balance isn't the same sort of thing as having a postpaid bill due: https://support.bunny.net/hc/en-us/articles/8726637076124-My...