i now own 0.5% of something worth zero, yey that went great for me
i'm so good with investing really
If you mean that you own 0.5% of the SmartBillions token, you can use the disinvest function to get 71,43% of your invested Ether back. I did it too. See the official Telegram, it is there somewhere.
I could also have told you: Give it to me!