Their website is Eth.limited, isn't it?
They have developed their project from 2019 but their website was registered on 2020-01-12 and could not found the owner contact information.
But why did you call their project is a ponzi scheme project?
First, you need to learn about ponzi model, so that you can easily evaluate new projects. This is obviously a bullshit ponzi project that I see, stay away from this project if you want to be safe and not lose money.
Right, we have to stay away from ponzi schemes like this and now there are many ways to not look like ponzi schemes but if you understand that then you will know how to distinguish them from legitimate projects.