Refund

What is your question?

I had a waterpump replaced recently on a chrysler lhs 94 and the first time the mechanic mistimed it by 2 inches,and it wouldnt start, and he finally timed it close enough that it started. The same day after leaving the shop at a stop sign the car completely stopped. I check fuel injectors and gas squirted from them. plugs where replaced along with a coilpack. Car has previosly never stopped before. And now I want a refund on the job and to take it somewhere else. But I wanna know how much should myu refund be if he charged 345.00 for the whole job.