There is a statement:
"Even the bank makes negative profit you won't lose your investment. However you can not make profit either."
This needs more explanation. If the bank makes negative profits, how come we don't lose our investments? I mean by investing in your website, we become the bank. If the bank returns negative returns, our investments will go down.
If we are not going to lose our investments, are you saying you are going to pay from your own pocket? Don't get me wrong but this sounds too good to be true.
I was going to point this out too but you beat me to it. There has to be a risk for the investors in order to earn profits if they won't lose a portion of their investment then they shouldn't be earning profits from the start. Maybe OP forgot to include the word all on the "you won't lose your investment" part. I also don't understand how the profit will be distributed why are there two "your investment" on the calculation.