A referral, inviting party or personal manager is a company partner who is engaged in providing publicity to promote projects.

Many partners use social media, YouTube, niche websites, online contextual advertising to promote projects.

Most likely, you learned about the projects thanks to your personal manager (partner, inviter). His/her data can be found in your user profile.
You can always contact your inviter, who will be able to answer your questions as an experienced investor in the projects.

If a participant registers on the project websites via a direct link /auth/registration, then the inviter is SOLARGROUP (company@solargroup.pro).