Well whatever you do don't bring it up with Comcast. When I had them they were always higher than the logging info on my router, usually by at least 100-300GB. I was always close to the stupid 1.2TB cap and sometimes I would limit uploads the last week of my billing cycle to keep under the cap. If it was 10GB for the month in the last week, there is no way I'd tell them.So far it says 10 GB for May 2023. And I updated my iPhone and iPad last week where I verified that the downloaded packages are more than 5 and 6 GB.