I am thinking..

I will pay part of the service through credit card company, at least they replace the brake for me, but maybe the brake shouldnot be replaced right now, the store wants money. Do you think how much should be reasonable for their service and brakes replacement?
Before the service, the technician asked me to do the tune up, but it need another more $350, so he suggested me to do it in the near future. And except tune up, they asked $1400 for the major maintenance and replace brakes, I said too expensive, i can accept if less than $1000. I really didnot know the price and trust the store whick looks like a big store on the web http://www.bigotires.com/, but I was wrong.

Thank you so much.