Bad experience at outsurance

About 3 weeks back I removed a vehicle that I sold. The lady that helped me asked if I am buying another vehicle. I said not now, but in a months time. She then said I must preliminary put insurance on for the new vehicle and when I buy it I just update the details. So we preliminary put on a 2004 Disco 2 td5 beige. She said that if I get a older model and a white then my premium would be less. Today I phoned to register my new car and start the insurance. It's a 2001 Disco 2 td5 white in color. To my disgust I was quoted more that for a 2004:model even though this one's retail is less. I told the gentleman that he must listen to my conversation of 3 weeks back where the lady said it will be less. He then referred me to his manager and when I told her to go back and listen to the recording she ended the call. I am still waiting for her to call me back. I have been many years with outsurance and have all my possessions insured but this has been really a bad experience that I received today. This is really not what I expected from outsurance.