Auto Gallery Imports Overcharged me for a vehicle Westbury New York

I bought a 2006 A6 for $28,900 in March 2008. Plus $3,233 for a 3 year warranty, plus $3,319.52 for taxes, plus $995 bank fee, plus $295 registration fee. Minus $8100 down payment. Total comes to $28,642.52. However the amount financed on my instalment contract is $36,381. That's a difference of $7738.48. I called about it once and that's when he broke down everything for me, which is where I came up with the amounts I just listed. He also said there was a interest buydown cost of $962 per each year of the loan, which is 7 years. So I wrote this all down and faxed the dealer, but I left out the buydown cost because I thought he meant that was the interest amount, and I showed that I thought I was overcharged $7738.48. Then he called me back and was trying to figure it out and says...oh! you left out the buydown. Then he said the buydown was $1105.49 times 7. My interest rate is 7.05% for 7 years...that doesn't sound like a rate buydown to me! Finance charge comes to $9816.48. Also When I first bought the car and was at the dealership I said I thought the amount financed was too high and he said the warranty was $3233 per year (times 3 years). So after I got home I decided that was too much and told him I wanted to cancel the $3233 per year warranty and he says it's only $3233 total.

September: Still have not resolved this. They were supposed to redo the financing but they always say they'll call me back. If they do it's always 5 hours later when I'm sleeping because I work nights. So I faxed them a request to send me a signed copy of the refinance details but have not recieved anything. It was supposedly done and pending on me sending them a copy of my vehicle registration.

daredevil1
Upstate, New York
U.S.A.