KING Nissan Volvo Scam, con, unethical business practice Bellingham, Washington

On Sat, March 13th late afternoon, I put a $500 deposit down on my Amex for a used Volvo, agreeing that I can have it back should I decided against it and when they offered me a 7.89% interest rate, I walk out & bought a new Hyundai shortly after.  Before I drove off the lot of King Nissan Volvo, Matt, the manager come running & con me into signing something for me to get a better interest rate from my bank or somewhere else, something to that extent.  I signed the form stick to me in my running car & left.  I was not given a copy of what I signed.  I emailed the salesperson, Ian, in the early morning of the 14th (shortly after midnite) to adv him of this and request for him to arrange to refund/credit back my Amex.  I emailed again later that same afternoon & again on Mon, March 15th with no response and finally show up in person on Wed, 17th but both Ian the sales consultant or Matt, the manager were off. 

On Thursday, March 18th morning, Matt the manager called me & told me to return the new Hyundai, that I've a deposit down & signed a purchase order & I've to buy the used Volvo, or a Nissan from that dealership.  He ended the call saying he'll have an attorney send me a letter.  I rec'd a letter from attorney James Doran dated March 26th basically saying King Nissan Volvo is expecting a profit of $2,800 from this sale will sue me for it if I don't "complete" the transaction.  I finally rec'd a scanned copy of the "Vehicle Buyer's Order" that I signed, thru an email  from my attorney yesterday.  Interesting enough, the letterhead of this "Order" indicted "Nissan Volvo Hyundai"! 

First of all, I only committed to the price negotiated and never to the 7.89% interest rate, 2ndly, on the "Order", which I never ever have a hard copy of, had a handwritten note by the sales consultant that delivery is for March 15th, which was never the case.  This was never ever discussed or agreed; I pretty much walk out as soon as they presented me the high interest rate & I adv them I'll check on the interest rate of my own line of credit from my bank.  What I thought I signed was that I agreed with the negotiated price, it was presented to me in my car, with engine running and in reverse, as I was leaving the lot.  If I'm to make a major purchase of $23,000, wouldn't one would be making the transaction at a desk with handshaking all around instead of a running car and with no hard evidence/copy of the transaction to take with me????? 

Thirdly, if "Hyundai" is on the letterhead of this Order, why do they even bother sending me a letter from their attorney threatening to sue me or force me to buy the used Volvo since Hyundai is part of the company/dealership and in their lineup????  This is really low of Matt the Manager (or Matt the con artist) and extremely unethical business practice!!!!  I only find out this dealership has the worst reputation after I try to get my deposit back & start looking into them.  One of the manager at Hyundai advise me King Nissan Volvo do this all the time and they never win and that's why they're not doing well and Hyundai end up buying King Nissan Volvo!!!  Consumer, potential car buyers and lone female car shopper beware of this scam, con sales manager/dealership!!!!