guys, I asked before but there was no feedback.
I found a company https://nuvoo.io/ located in Canada. Their contracts are odd !
I don't know if this is scam or not ! it is number one in www.cryptocompare.com
for example it has life-time contracts like Hashnest but for a Gold plan you pay 2100$ for 6325 GH/s and has a profit calculator
that shows a 480$ per month !
what do you think ?!