I wouldn't trust them at all.

Take minezone.io for example, they claim to be a London-based company. The company number they have on their "FAQ" page is for BITEXPLOSION LIMITED whose registration status is "Active — Active proposal to strike off". Being struck off is a bad thing. Their annual confirmation statement is four months overdue. That also is a bad sign.

Bitbase.club's website is an almost exact copy and also gives the same company number (i.e. BITEXPLOSION LIMITED)

The 99Click.cloud domain doesn't seem to exist.