Human Resources

I am an employee of Comcast and have worked there for 25 years.  I have been out on leave for more than 180 days and they canceled my courtesy services and sent me a bill for $548.00 as my new monthly. They also disconnected my services today because I am not paying that much per month for cable and internet. I am trying desperately to get a phone number to someone at the corporate office in human resources who will be able to help me understand a few things about their policy. If anyone has any information please respond to this message