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.