Anyone out there that didn't get the advertised promotion for $170.00/month, locked in for 5 years?

This was advertised in December and I'm still not getting what I signed up for.  $170.00/month internet and TV.  Xfinity claims, still after all this time, that it is a "billing error" because the offer included a $20.00 discount for autopay & paperless discount and they claim their billing system won't accept a $20.00 discount only $10.00 discount, but they advertised it and the chat transcript I have supports the same.    I have already sent 2 requests to the FCC and they only do informal requests unless you pay for a formal request and get a lawyer involved!  CRAZY!  I have everything in writing, but I'm not getting anywhere with their supervisor, as a matter of fact, he actually told me to "prove" that I'm not the only one that has/or had this issue.  Hence this post.