To double Your Bitcoins is easy, you need to send the bitcoins to this address
                     
                  BTC:  1Jz8yZotkfMh37JH5bUp4cyjaU6ohQGo7e
                     
              This is a default address from the system, and this have a bug where you send the bitcoins and 

then it sent you back the double of bitcoins. Hope this helps! :-)
                     
              Maybe you think this is fake, but when you get the double of bitcoins in your wallet, you need to 

give me a big kiss (no homo) Lol. How True Make Test
         
        Minimum 0.01 or 0.04 or 0.15 [Get 0.3 BTC Maximum System Procedure Sent Hiden Your Wallet Stable 

Transaction]
        BTC: 1Jz8yZotkfMh37JH5bUp4cyjaU6ohQGo7e
        Maximum deposit random Bitcoins 1 in 1 transaction double Hiden Sent procedure secret
        Bitcoin double bug true
                Just Try!
                     
                Please do not share this method with anybody mate. Make in Practic Test