This is a complete scam
This is a complete scam, I lost $6,900 on the site crytocoinminer.com, cryptoof.com these are the same scammers. Beware, they promise a quick big profit and everything seems to be fine at once, but as soon as you raise the amount, they immediately change the terms of the contract and block the withdrawal of funds, and then completely block access to the site. SCAMMERS, ATTENTION