PSA! I talked with NintendoSupport on the phone.
Everyone who meets the three criteria will be getting an email today. Phone tomorrow if you don't and sort it out.
If you meet the 3DS and Plat. Criteria but don't have email notifications, phone them and they will enable it for you.
This is what they told me, and they said since I enabled it late with them I will be in one of the last batches in the day. And if I don't get it today phone back tomorrow and they will hook me up. Everyone who meets the criteria stop panicking and be patient.
Love,
Kiro