Crypto referral not showing on app

Hi, I signed up 4 of my friends through crypto referral link: https:revolut.com/r/amolkr3q!crypto and I can only see 2 of them signed up on the app. Can someone help resolve this on the app?

Hi there. I’ve sent you a direct message. Please don’t hesitate to contact us if you have any further questions.

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AndreasK