Referrals not showing up?

I'm currently working on the $2025 for 5 friends promotion and have gotten 2 done so far. The last 3 people I've gotten to complete it aren't even showing up on my list, even though they've NEVER had an account before and DEFINITELY signed up using my link.

I called Acorns, and they told me that those people are not showing up on my list on their end either and asked me to have my friends contact them so they can try and figure out the issue.

Has anyone else had this problem? I don't want to refer anyone else until it's resolved because I might just end up wasting another referral, but I also don't know how long it'll take for them to get this thing resolved or if it even will get resolved. I need some help.