It's a little strange, you haven't released your site yet and there isn't any information about Zeta Protocol, it's just the purpose of the Zeta Protocol. but you have opened a private sale, this looks very rushed or you just want to make money.
Private sales are things that are usually done by any projects before starting their project, they will sell tokens to people who are serious about buying and investing, as you can see it is a private sale and must have a very high minimum, i saw on twitter they are launch their private sell when the website is release whichmeans that investor should see what are they building on platform and how its gonna give benefits for them to invest, well lets see what is comming next.