I know from at least 3 folks that got reimbursed from the retraining costs (15ish K) just 2 weeks after signing the dotted line.
As per the ticket for the interview they are very clear about reimbursing up to 1k USD, which they honored as well.
And for your seat preference, sorry, but I dont think anyone nowadays will offer you a confirmed business seat for an interview, except maybe KAL.
But this is another story.
I wont call JET a bunch of liars.
Of course MANY things could be improved, beginning with the rotation itself.
Lastly, simulators can have problems on any single airline in the world.