Internet usage "spike" before end of cycle

Since the November 2023 billing cycle, I have been hit with ~ $70 of data overage charges each month. I followed the process and opened a ticket with support, which was of no help. They just kept referring me to the "data usage meter" report in my account portal and claimed it was accurate. I asked for a copy of specific traffic logs so I could audit accuracy and hopefully identify the root cause source device(s). They advised me that specific information wasn't captured. I asked how they could classify my traffic as "web browsing" versus "social media" versus "network management and testing" (according to their data meter) if they didn't have the specific data from their logging. They had no answer for that query. My next step was to register a complaint with my local utility regulator (PURA for Connecticut). Literally the day after I submitted my complaint (and included several other Cox forum posts indicating other customers with very similar issues), I received a call from a "Cox Escalation Specialist", who basically repeated the talking points from the original service call I opened. It appears PURA didn't do anything other than literally pass along a complaint to a utility they are supposed to regulate. Not happy with this development, I contacted my local State Senator's Office and asked them to intervene on my behalf. All I am asking for is specific and accurate data to support Cox' claim of excessive use. It seems like this is a concerted effort to dissuade customers from complaining in the hopes they will simply pay the recurring charges or upgrade to a more expensive unlimited data plan.

If Cox can prove their claims of excessive usage, I will be happy to pay or upgrade without complaint, but until then, I don't plan to let this rest.