I turned off data on my device as soon as I received the warning. My bill also shows that I used exactly 4G of data. Somehow I got charged 10 dollars extra for 9MB(?????) of data I never used?
Hey @jakjak4151, welcome to the community!
This is something you'd need to take a look at with customer service. There are a lot of options you can see them here.
Or we can send you a PM. Let us know!