My doesn't my Panoramic WiFi modem gather data usage?

I'm enrolled in the emergency broadband scheme, but for some reason, I keep getting emails saying unless I use the internet within 5 days, I would have to pay the full amount without the benefit, but the modem isn't collecting data usage,, and since I got rid of cable TV, I use the internet for video streaming via my smart TV, such as Hulu, Netflix, youtube, etc etc, which should have registered on the data usage of the modem, but it's not.  My account at Cox, shows in the past 6 months no data at all, as if I'm not even using the internet.

I have spoken to Cox, and they said there's nothing wrong with the modem.  Is this just a ploy to stop me having the emergency broadband benefit scheme?  Because the more Cox tell me there's nothing wrong with the modem and I have returned it several time, the moire I'm leaning to this being a ploy.