Change My Plan

Why has that link been broken for the last 5 years?  I have emailed comcast about it.  I even wrote the president of the company and they are still being shady.  Why do they NO want people to change their own plans?  Are they counting on that customers on hold would get tired and hang up the phone before changing their service?  They do not want individuals to be able to have the most affordable deal for themselves?

I really and truly find it hard to beleive that it is cheaper for me to keep the triple play package than to downgrade to just cable and internet.  What kind of trickery is this?