I can confirm with 100% certainty that they DO NOT actually count all of your referrals. I signed up, did my 50 spins, then the next day used my referral code with my brother at his house (different computer, different IP) and this referral never appeared on my account. Moving on from this site, I knew it was too good to be true.
Great catch! If the simple function for referral system doesn't work then for sure it is a scam site afterall.
We should avoid sites like this at all cost and we must be wary that there maybe a hidden agenda that is why they created btcheat.com .