Many users did not fill in the invitation code when registering for Binance in the early stages, or did not know that the invitation code had a fee discount at that time.
The good news is: eligible old users still have the opportunity to bind the invitation code.

This tutorial will teach you how to try to bind CS7MMKKE step by step with 'practical thinking + official rule explanation'.

1. First, let's state the conclusion (very important)

Not all old users can bind the invitation code; whether it is successful depends on the account status.

✅ Users with the opportunity to bind invitation codes

Meet the following conditions simultaneously for the highest success rate:

  • When registering for Binance, no invitation code was bound

  • Account spot / contract trading volume is low or nearly no trading

  • Account has not participated in other rebate activities

❌ Situations where binding is basically impossible

  • Already bound other invitation codes during registration

  • The account trading volume is very large (long-term old trading account)

  • Has been classified by the system as a 'non-rebate user'

📌 Even if the conditions are not met, you can try contacting customer service, but do not have too high expectations

II. Official feasible path for rebinding invitation code (core)

Currently the only feasible way for old users to rebind on Binance:

👉 Submit an application through Binance online customer service

⚠️ Important reminder:

  • Binance does not provide a 'manual input invitation code' entrance in the webpage or app

  • All methods claiming 'click link to rebind' are unreliable

III. Detailed operation steps for rebinding invitation code CS7MMKKE

Step 1: Open Binance App

  • Log into your Binance account

  • It is recommended to operate with a stable VPN

Step 2: Access online customer service

App path is as follows:

【Profile】 → 【Help and Support】 → 【Online Customer Service】

Or click the 'headphones / customer service icon' in the upper right corner of the homepage

Step 3: Send keywords to trigger the official process

In the customer service chat box, directly copy and send the following text:

I did not use an invitation reward when I registered on Binance, can I still bind the referrer now?

🔍【Description】

  • This is a trigger keyword tested by a large number of users

  • The system usually automatically pops up related options

After the robot replies, similar options will generally appear:

  • ‘Unbound referrer’

  • ‘Want to bind invitation rebate’

  • ‘Understand invitation rewards’

👉 Please select unbound referrer / bound invitation relationship

Step 5: Fill in the invitation code CS7MMKKE

When the system prompts to enter the referral code, fill in:

👉 CS7MMKKE

Submit and wait for system verification.

IV. Two outcomes of successful and failed rebinding

✅ Situation 1: Rebinding successful

You will see one of the following prompts:

  • Successfully bound to the referrer

  • Invitation rebate has been enabled

At the same time:

  • Subsequent transactions will automatically rebate according to the invitation ratio

  • Does not affect your existing assets and account security

❌ Situation 2: System refusal

Common prompts include:

  • Account does not meet the conditions for invitation binding

  • Has participated in other activities

  • Currently unable to bind referral relationship

📌 This is due to system rules restrictions, customer service usually cannot manually force modifications

V. What to do if rebinding fails? 3 alternative ideas

Plan 1: Continue using the existing account (safest)

  • Does not affect normal trading

  • There will be no account ban or restriction risk

Plan 2: New account registration (suitable for light users)

If you:

  • Not much asset

  • Trading records are few

Can consider:

  • Withdrawable assets

  • Use a new email/phone number

  • Re-register through the official link

👉 Registration entrance (automatically bind CS7MMKKE):
https://www.binance.com/zh-CN/join?ref=CS7MMKKE

Plan 3: Use other fee reduction channels

For example:

  • Use BNB to deduct fees

  • Participate in official activities or VIP plans

VI. Common misconceptions about 'rebinding invitation codes'

❌ Misconception 1: Contacting customer service will definitely bind
→ Wrong, it depends on whether the account meets the rules

❌ Misconception 2: The webpage has hidden entrances
→ Wrong, must go through customer service process

❌ Misconception 3: Rebinding will get the account banned
→ No, this is allowed by the official

VII. Summary (real advice for old users)

  • ✔ Old users who have never bound an invitation code, it is definitely worth trying once

  • ✔ The whole process only goes through Binance official customer service

  • ✔ Fill in the referral code: CS7MMKKE

  • ✔ Success is a plus, failure will not have any risk