Not sure if you mean you're having a lemon Law issue or want the sales pitched 'buyback' thing where they try to get you into the door with promises of big money for your trade.
If it's the former, here is a link that may help educate you on what you should be expecting. It may not be for exactly what you have going on but it's a general start for you. Good luck!
Put -c u m m i n s f o r u m . c o m- after the www. below to complete the link. (without the spaces)