To me these are huge red flags.
10/10 would not buy!
Hello Satowallet plans to be open source and decentralized in the future as started on our investment paper. We have been active and running since May 2017 with big partners like Tron(https://medium.com/@Tronfoundation/satowallet-exchange-partners-with-tron-4185b1dc9715) , Changelly( https://medium.com/@Changelly/changelly-partnered-with-satowallet-752647d94597) , Digibtye( https://www.digibyte.co/digibyte-wallet-downloads) and many others.
Referral is part of our system of rewarding our users and also profit sharing for everyone to benefit from our growth as a company. Our Team and CEO has been actively working from all around the world.
This looked like a scam a year ago...