“That one empty referral field can cost you forever.”
It looks optional.
But your future trading fees aren’t.
If you enter CZ2026 during signup, you unlock:
🔻 20% lifetime trading fee discount
🎁 Up to $600 in welcome bonus rewards
Skip it once…
and you’ll pay higher fees on every single trade.
No reset.
No second chance to add the code later.
Use [CZ2026](https://www.binance.com/en/join?ref=CZ2026) before you click ‘Register’.