Ouch, Charter only charges $82.99 a month (with modem rental) for 100Mbps. Around the same time they introduced 100Mbps service, they introduced bandwidth caps. (500 gb/month for 100mbit service). Bandwidth caps @charter are a 3 strike policy.

I can get charter business @~$200 a month which is 100mbit service (no download cap, guaranteed uptime). Are you on some sort of comcast business plan?