They would already know to a very high degree, because the device associates with a specific cell tower, and the cell size is quite small for 5g networks, especially in cities. I don’t see why they would need a more accurate info.

I mean, I am fine with my hobby website being taken down if it starts to consume an unreasonable amount of bandwidth.

They don’t need to give a free tier and I am not entitled to getting anything out of them. Since they have decided to offer one, I do expect to be consulted before sending a bill worth a ferrari.

I just checked I have no payment method on file. Should protect me.