How to rebind the invitation code to your OKX account and get rebates? Just follow the tutorial below: 1. Click the invitation code rebind link below oyidl.me/ul/J6l2R5 2. Enter the invitation code: 521btc 3. Fill in the binding reason and submit Once the binding is successful, you can start receiving fee rebates. My old account has already been successfully rebound, so go ahead and give it a try too!