Unable To View Individual Device Usage?

And now, 5 1/2 hours into February, it is saying we have already used 1 GB...everyone is sleeping...not even possible????

Also, for Comcast Customer service - the amount of usage you are showing for our household is not even reasonable as we are out of the house 8+ hours a day... Please assist with this matter. It feels very unfair to be charged a courtesy overage when we can’t even view why and how this supposed overage happened. Also it seems that we were charged a previous courtesy overage but were never notified?? I can no longer view monthly usage further back than November, however I am wondering if this previous overage was a result of the software bug that Comcast discovered in October 2019? If so, that courtesy overage should be credited back to my account. Perhaps my current issue (that others are experiencing as well) is the result of another issue like that? Please assist.