Long Term Internet Customers getting ripped off

Xfinity, you have offered a deal for new customers this holiday season for a guaranteed 5 years of 1 gig @ $50 /month.  However when I inquired with two of your online people and one phone representative they reassured me that although I've been with xfinity internet for over 7 years that I do not qualify.  This could be a savings for loyal longterm customers, but you are choosing to ignore them.  In my case that savings over 5 years would be $4,320.  This seems very uncaring to your long term customers.  I know I am a very, very insignificant account in the grand scheme of xfinity, but I thought voicing my frustration would wake up your long term customers and rethink why they are paying more than fly by night internet hoppers.  Long-term customers used to mean something to businesses, but it seems not anymore with xfinity.  I hope xfinity reaches out and resolves this.