I bought my first bike from blade kawasaki in swindon. have to admit that they done everything in their power to help answer questions etc. didnt get to start it when i got there as it was inside and the weather was terrible but i couldn't fault the lad i was dealing with.
you might have got a lazy so and so and on saturday might be worth asking to deal with another sales person from the yamaha side who is willing to work for their sale.