I have read on some forums that Onbux is already a scam but I still worked on it because I want to prove that it wasn't. Last week, I reached the minimum amount for payout and I decided to withdraw it. The last time that I withdrew my earnings the processing was just within 24 hours.
Until now, I haven't received my earnings. If my earnings in Onbux would not be on my paypal this week. I will conclude that it is a scam.
For now, I will recommend that you stop working on it. I will inform you once I received my payment.