yess.

But I have seen a little nonsense in this game:
correct me if I'm wrong.
I have see that few members have invested 0.002 or more.
after 89 hours in the hot wallet was less than 0.002 so they have lost their investment
If they had invested 0.001 and 0.001 they had got one return.

I advice not to invest in "once" more thant 0.001 because you can fall in the above situation.

Normally to be fair,if the hot wallet is not completly empty,but not enough to return the promised fund,at least parly promise should be returned.
The more you invest in once...the less you have chance to withdraw...
Exemple:
you invest 1BTC...
suppose the withdrawal amount is 1.35BTC
You can only withdraw if in the hot wallet there is more then 1.35BTC