Mobile Data overcharge

Since January 2026 Xfinity has been steadily overcharging me on Data, it is paid directly out of my one account that I don't check regularly. March 24th the bill was a whopping $935.66, Feb 24th it was $335.66, on Jan 24th it was $575.66 - never was I given a warning that that my account went over the allotted gigabytes. and a bill of over $935.66 would be ridiculous (I would have to be 20 people logged on for an entire month)   I can get no help from xfinity whatsoever, I get the chatbot go around and the answering system won't allow me to talk to an actual human-  I want to know the problem was it because the internet would go down and then log me on to the 5G network and not log me back on to my home network or what? but right now I am feeling very scammed by xfinity and nobody seems to be able to help me, I am 78, living on SSI and I can't afford $935.00 mobile phone bills ... they couldn't even help me at their brick and mortar store, just with the present month and putting me on an unlimited data plan.

I would like a Data Usage Audit for these outrageous charges and please have this email directed to a supervisor or to the Retention / Customer Solutions team baring that I guess I would have to file a complaint with the FCC or our States PUC .