That’s why I prefer prepaid cards or those I can easily freeze to prevent any booking.
In this situation if it were to actually go to court I’d expect the actual bill to get significantly reduced at the very least. But because it’s a completely bullshit charge based on bandwidth usage (which costs them nothing) it won’t go anywhere near that and will just get written off anyway.
For you to put together this sort of argument with a straight face, you need to have little to no understanding of how the internet in general, services and web apps work. Good luck arguing your case with a judge.