On a Friday I was mining mastiff, Monday the pool was closed and no chance to withdraw. What gives?
supernova pool scam ?
Suprnova working great for me!
Used them in the past and no problems whatsoever

+1
I'm always announceing pool closes DAYS before they close, you had at least 5 days to withdraw your mastiff from the pool and even if you had/have problems after that, you can always message me directly or write support a mail.
It is as easy as that: always withdraw your coins from the pool.. Whats so difficult to withdraw your earnings ??! A pool is no bank

I was mining Friday and Monday the pool was closed. So not 5 days.
Also I did write to support but guess what?