BTCC Referral Code vs Promo Code: What’s the Difference?When it comes to trading on BTCC, one of the world’s longest-running crypto exchanges, traders often hear about both the BTCC Referral Code and the BTCC Promo Code. While they sound similar, they actually serve different purposes. For new users in 2025, knowing the difference can help you unlock the maximum signup bonus, trading rewards, and fee discounts. Whether you’re signing up for the first time or already an active trader, understa...