TXU energy Highway Robbery! Instead of saving me $ they made me bill 2x more expensive. Corpus Christi Texas

I am writing because I switched from my electric company to TXU due to the announcement stating they can save me money with free weekends or week nights. As a military family, we are always looking for ways to save money and help other families that come into town asking about phone companies, electric companies, etc..........  I was paying under 300$ a month and made sure to have my bill on hand so when they asked me for kW usage I was ready. I also expressed the fact that I wanted to pay under 300$. Customer service pretty much in their happy go lucky way said that I would be happy with TXU's service. Well, low and behold, my first bill came in the amount of 651.00$. WTF? When I called back to complain, that happy go lucky voice went to condescending and rude. I have never been treated with such disrespect and degrading manor. They made me feel as though it was my fault. I immediately cancelled and went back to my old company. My bill for the winter season has been under 200$ each month. And when I switched, the bill went right back to being under 300$. I thank god I switched. TXU has ripped me off for the last time. I will ensure to tell anyone I can of this false advisertisement and highway robbery. Thanks for nothing TXU!