I have ordered from Mark in Aust, Terry from USA, Jeff n Crystal from USA plus many many others and have never got one order wrong out of probably 100. I have been lucky.
I will say that I have always made a phonecall or a sent a email to check on stock availability before sending money.
Have the people who have been let down ever phoned the owner for a chat to sort out the problem. Sometimes people are happier to go beyond and above if they hear constructive criticism.
Those taking pot shots at the owner for political reasons should consider the person is not on here to defend themself.
Attacking people who can't defend themself is un Australian in my view.
Let's debate pinball with passion and sometimes give our debate partner a little bit of ribbing, but personality assassination is not what makes the forum a great place.
There are a lot of excellent pinball parts suppliers in Australia. Try them all.