please use your brain, a company who really need pilot do not ask money for selection process.
all airlines asking to pay $ for an interview are running scam , and are more interested by money than YOU.
It sounds that some of you have to much cash to spend, so go for it. Pay to play videogames and see your results, then pay again and come back on their videogame to see if you have a better score.
some guys in their office must laugh, to see all these pilots paying them.
Sadly it is a way to make money.do they give you a T-shirt ?