How do i know people that become my referral on RedGage?

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A few days ago, I got a message from my friends they they have signed up to Redgage use my referral link. But i did not get any message or notification to my email. And i also do not get a referral bonus on my account. A also signed up through my friend's referral link. But she didn't get any notification, so she asked me, weather i had signed up redgage using here referral link or not. My question now: 1. How do i know there are people who have signed up to Redgage using my referral link? 2. Where can i see a list of names who have been my referral? Anyone can help me to explain this? Thank you so much.