I have had the referral credit system for a few months now. My current members were excited at first about the possibility of being rewarded with credits when we got this addon, but were disappointed when we found out that no external authentication sign-ups are counted as referrals. The links generate fine, and we can give them out to people, however when someone tries to login with Facebook or Google plus it does not count as a referral. Normal account creations work just fine (when nobody uses Facebook). Would it be possible to start supporting external authentication? It seems like an easy issue to fix. Thanks!