Original post updated !

Earned total USD: 142.32 USD ( In 70 days)

The surprise comes when after 70 day's when finally i have reached the Minergate Minimum amount that allows me to withdraw BTC.
I can't withdraw the mined BTC, on the last step when i have to click last time on withdraw button i get this error:
ERROR: Service is temporarily unavailable.

Now I can say for sure.
Minergate is a 100% scam.
If you invest less than € 200, you will never get to the minimum of withdrawal.
And if you invest more ... the button to withdraw the BTC will not work.

I hope that this information will be useful to you.