Scam. This is no way someone can double your money in just short period of time.

The name of the website explain it all , and BtW OP if you are looking for good investment don't invest in Of ponzi scheme pyramid scheme and doubler they are proven scam long time ago, they are still doing it because they are profiting from investors money. They can give double the money but its only chosen not all of investors will earn with that kind of scheme.