Add/invites not working. – Oppa Review

I lOVE the app, HOWEVER, since i Made the acc 2-3 weeks ago it has not once allowed me to add/invite friends to make the supposed $2!!! And all my friends i’ve HAD make accs after me, claim it hasnt worked for them either. PLEASE FIX THIS ASAP.
Review by Nikconxo on Oppa.