Hello and welcome,
I would assume then that he has not been able to diagnose it at the actual time it won't start correct?
That's kind of what i figured. Well,,,he probably already told you this, but the problem is going to be either a fuel or spark problem and the only way to get an accurate test, is to test the fuel pressure and spark to the spark plugs at the time of the no-start. This makes things very difficult for all involved, especially someone who is trying to take an educated guess......I can give you 2 common things that it could most likely be if that will help, but there is no way we can say for 100% certainty which one it will be for obvious reasons. If this will help you let me know.
I want to withdraw my money now, please credit my account to my credit card
Well,,,it looks like you were expecting a guaranteed one answer fix without any testing off the possibilities.....sorry. NOT possible. firstname.lastname@example.org for refund.