Wanted: Study.com Coupon or Referral Code

[SDO]

If someone used study.com in the past(guardian scholarship) can they take advantage of a referral code? Or is it only for new customers?

The referral code is intended for new customers, but if someone signs up with a different email address, it seems they are considered "new."  The downside to that is that the person can no longer take advantage of course overlap from the courses they completed previously.