Comcast Xfinity Deceptive advertising, Poor customer service Nationwide

How does this company stay in business? the words "customer" and "service" should never be in the same sentence when talking about Comcast. They have no clue what customer service is.

After putting a moving order in with USPS, I received all sorts of coupons and promotions from various companies. One of them was from Comcast offering a $200 Visa gift card when subscribing to a "triple play" with a "HD preferred package", and a 2 year contract. I did so and was told that I am not eligible for the gift card as my area may not be eligible. REALLY??? THis just seems like deceptive advertising to me. I wish there was competition in the cable market in my area. Even FIOS and dealing with Verizon would be better than Comcast. Unfortunately, my only choices are Comcast or Dish.