I've paid for Neobux Human Clicking Simulator, but I haven't received my software after more than 15 days.
There are comments on the official website that the software is a big scam. I recommend that you contact the developer using the following email address: firstname.lastname@example.org. The developers are the only ones who can provide information about your purchase. If that doesn't happen, open a case with PayPal if you paid using this method or contact the bank. It's possible to request a refund during the 30days period.
Additionally, use the following website to contact the developers: http://www.emhbots.com/2015/03/neobux-autoclicker.html#