Outrageous internet data charges

I have the same issue.  The data usage does not line up to actual usage.  It feels like a scam considering that when I first signed up my account was unlimited.  They take it away just to try to charge me for what I used to have. During the last week our supposed usage jimled a lot and now I'm hitting  lose to this new limit 5 day away from a new cycle. I turned off my modem and am using my unlimited cell data to run our streaming devices.  Cox could not care any less. Dropping cox as soon as I move all bills, online accounts , etc to a free gmail account. Thia 22+ year Cox account is leaving over their greed.