I’m based in the UK and that looks like a US phone number which means it’ll be the middle of the night right now so I wont call and disturb your sleep. I would guess that the referral didn’t go through because you were both on the same IP address. This is a fraud prevention measure to stop people signing up for multiple accounts to earn affiliate payouts. If you could email dave @ jsecoin . com, with the details of yours and your mothers account he will be able to look in to it and give you the exact reason.