Like wild-bull, this site didn't even manage to pay out on one small deposit. Messing with doubler scams and HYIPs is risky business, so stay away from sites like this that don't even provide users an account page or dashboard. In fact, unless you are brave or stupid, like me, it's probably best to stay away from all such investments as there is no telling when they might just disappear with your money.
Also, I've been noticing on Trustpilot that there are TONS of negative reviews on sites like these that claim -insert name here- was able to help them recover their losses from these scams. This is also a scam. As far as I know, there is no way to get sent crypto back other than the person who received it voluntarily sending it back to you and, with a scam, that just isn't going to happen. These are not licensed or regulated businesses, no matter what their sites say, and any physical addresses/phone numbers/emails/etc. are either entirely fabricated or only exist virtually. if you are looking for safe ways to invest, sites like doublebitx are not your cup of tea. Steer clear.