He's actually quite active on the Discord servers dedicated to zergpool.
(During his waking hours)
Someone did ask the same questions but it hasn't been answered yet.
He will never answer the questions as he don't wanna reveal the dark secret he has in the pool. The real question is to yourself asking who in the world makes things for free???
Zergpool 0% fee = stealing 25% of hash + some coins (you better watch)
I quit after the payment and never come back to this scam.
For all of you... feel free to used it if you wanna be robed. If Zergpool honestly charge fee or fix some issues after report, then I would be comfortable to use it. Now my trust is gone....