Don't remind me.
First, the proof didn't match their screen.
And they 'helpfully' provided a picture of the proof next to their screen.
Then the proof didn't match their inkjet.
And they 'helpfully' provided a copy from their inkjet.
After matching said inkjet they decided it 'didn't look the same.'
You can't make this stuff up.
Sigh.
Turns out the whole reason for the attempt was because the inkjet per print cost was thought to be too high.
Never placed an order, never saw them again, thankfully.