I was not referring to referrals.
ViaBTC was giving (illegal) kickbacks.
Not sure about legality, but when you bring clients to them you can get some % off the clients' hashrate, they will just charge higher fees to the ones you bring. Still happening.
They don't charge higher fees if you refer someone. What are you talking about??? I have referred people to viabtc and let them talk to account reps who get them lower fees. Talking sub 1% fees...