SiteStar Nationwide Sitestar Bought my internet provider and then tried to hold me to new un-agreed on cancelation fees. Lynchburg, Virginia

I purchased internet access for a disabled friend several years ago.  Each year they sent me a bill and I paid it with my credit card. Sitestar purchased the company I was using, PlanetKC, and sent me a bill.  There was no notification of who they were and when I chose not to continue using dialup services, they sent me late notices to a year by year internet plan I'd never agreed upon.  Now they are threatening collections over a $80 bill that I did not incur.  They are charging late fees too.