Channel "Reshuffling"

I have never posted on any public forum but this experience merits sharing in the interest of advising others to be aware. Following may years of AT&T wireless phone service I decided to give the my personal internet and television business as well. This was no small decision and it was made following an hour long personal appointment in my local AT&T store with a manager no less. I asked detailed questions and made it clear what I was seeking in terms of service. Had an excellent experience and thus, I completed the transaction. Two weeks shy of 6 months into the new services, I noticed 2 channels that I watched showing up as "not subscribed". Puzzled, I contacted AT&T and was told by a representative that "from time to time AT&T re-shuffles channels" and the 2 I was missing had been moved to a different tier. She then forwarded me to costumer loyalty where another representative said "let's get you set up so you can get those channels." This of course meant paying more money and I made it clear to the representative that I was not paying AT&T more money under any circumstances particularly since I was technically still paying for channels that I was no longer receiving. I notified the manager at the store where I added service and he was very apologetic, and personally called customer loyalty with me on the line listening. A different representative tried to suggest that those channels were on a promotion which had expired which was nothing more than a feeble attempt to present some validation of the diminished service given the inconsistent explanation from different customer loyalty representatives. In the absence of an honest answer and no attempt by AT&T to offer a resolution, I immediately cancelled the internet and tv service only to have AT&T try to charge me a cancellation fee. It is not only unacceptable, it is inexcusable for any company to misrepresent services and expect to erode those services while expecting a customer to continue paying the same price. This is how AT&T says thank you for giving them incremental business. Due to my profound disappointment over this experience I'm now currently examining my alternatives for phone service. I want others to know that this could happen to you as well - the reward for your loyalty and additional business is getting jerked around.