Linked Interest Rate

I have never been so disappointed in my whole life. The salesman and the lady who was processing my documents played me as I was a first time buyer, sold me a car on a Linked interest rate after time and time again telling them I want a Fixed rate. They is no turning back now but I never recommend anyone to go they. The documents where quickly signed on the spot not allowing me to fully read the papers as they were flipping the paper for me requesting a signature ASAP.