Town Center Nissan

Worst experience after I bought my "certified" pre-owned 2011 Nissan Sentra. I bought my car in April of 2014 and in October of 2014 brought it to Nissan because it was shaking when I came to a stop; they said I had to broken axels’. Axels’ are hard to break and I find it hard to believe that mine breaking is just normal wear and tear. The service manager replaced them under warranty, however that same year November or December 2014 my car broke down due to my Throttle Body being clogged up, had it towed and cleaned out by Carl Black because I refuse to let Town Center work on my car. Since then I have replaced my catalytic converter, mass air flow sensor and my AC system. Now I am having transmission issues. My '96 Saturn ran better than this car. Went in today to talk to the GM Scott and he pretty much said these things happen over time .Not to mention this isn't even the car I originally picked out, and my sales guy was fired a few months after I bought my car. AND I owe way more than the car is worth. The GM was like come trade your car in and lets put you in a new one with tons of rebates to eat the negative equity. Are you crazy? I'll never buy a car from them again and if I know someone who is going to them I will talk them out of it. I am currently speaking with consumer affairs to see if there is anything they will do. The manager of service, Rick doesn't even care. He says the same thing, oh it's just normal wear and tear. Horrible experience. You'd think they'd take accountability, but of course not. "How are we supposed to know that the car was going to have 2 broken axels’ 6 months later" That's what the GM said. LOL Town Center is a joke!!