As you can see from this post, Katria, I had the opposite experience.
http://www.highdefforum.com/898134-post3.html
They are giving me exactly what they promised....actually $5 more of a monthly reduction than they promised for the first 12 months. They sent me an e-mail link to go to to redeem the discount. I did that and I now have their confirmation in writing.
I'm sorry you had a bad experience with them.