INSTRUCTIONS FOR SENDING A QUESTION TO FORUM

When I use the url provided in a previous chat, where I was requesting followup on an existing issue that has gone on and on and on with no resolution, I was instructed to go to URL: https://forums.xfinity.com/t5/My-Account/ANSWERED-How-to-contact-Comcast/ta-p/3053370.

And I received the error: 404
The page could not be found or you don't have permission to view it.
The resource that you are attempting to access does not exist or you don't have the necessary permissions to view it.

I am unsure, since this problem has been going on for well over two months, why a continuation of the existing chat is not available.   

Kindly provide me with a telephone number where someone who speaks english actually answers the phone or provide me with the correct URL