Regional Hyundai

I purchased an auto in 2008 and traded in an auto that was paid for.When I took it back to trade 14 months later,I was so far upside down, it was ridiculous. However, I was told by the original salesperson that when I brought it back to trade in a year I was guaranteed to receive what was due on it without it effecting the new purchase. When I repeated this at trade in time, I was basically told that would not happen. On top of this, I was put off and went for 2 days with unanswered phone calls from the General Manager down. The salesperson was very nice. Management needs to be fired and replaced. I would be ashamed to own a company that treats its customers with such little respect. Yes, I bought a vehicle from this dealer 14 months ago, never again. There are other Hyundai dealers.