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Guide to transferring ref to reduce 20% Spot trading fees and 10% Futures fees for those who already have a Binance account but have never accepted an invitation from anyone before.
+ Step 1:
Copy this ref link into your browser: https://www.binance.com/join?ref=KR5I38UW
+ Step 2:
Select login and log into your current account.
After logging in, a confirmation window will appear.
+ Step 3:
Select [Bind Now] [Link Now] and you're done, you will be under your ref.
Note: This is a new mechanism from Binance and is completely legitimate. If you have registered for Binance through any ref link before, you will not be able to do this.