satoshibox worked all the time, I have been using it for 3 years !!! Opinions of earlier people are wrong.
But now the withdrawal really does not work in satoshibox
It doesn't guarantee anything, they could always scam ppl anytime. Not to mention the amount of users having the same issue as yours, it's straight up shady.
Just to make sure, Have you contacted their support? because you need an authorized staff from there to help you and I am seeing that their account here is no longer active.