Many old users registered on Binance a long time ago. At that time, they didn’t register through an invitation link, or they hadn’t bound the invitation relationship earlier. Later, they wanted to supplement the binding but didn’t know how to do it. In fact, if the account meets the requirements, the whole process isn’t complicated—just follow the steps shown on the page, one by one.

What people call “supplementary binding for old users” is simply this: the account has already been registered on Binance, but the invitation relationship was not bound to an inviter before. Now, you can add the invitation binding relationship through a specified entry point.

Supplementary binding entry

https://www.bsmkweb.cc/activity/referral/bind-ref

Invitation code

BNB33

Operation process

Open the referral binding entry above, and first review the page instructions.

Log in to your own Binance account.

The system will automatically determine whether your account meets the referral binding requirements.

If the page indicates that you can bind the referral, confirm the binding according to the prompts.

After submitting, check the results on the page to confirm whether the referral has been successfully bound.

Be careful before proceeding

Not all old accounts support referral binding; the exact availability depends on what the page actually shows

Referral relationships usually can only be bound once, and after submission, they generally cannot be changed

If your account has already been bound to a referral relationship, you usually cannot bind it again.

When performing the operation, be sure to pay attention to account security—do not freely disclose verification codes or login information

If the referral binding fails

Common reasons are usually these:

Your account does not meet the referral binding conditions for this campaign

Your account already has a referral relationship

The campaign page is no longer valid or has ended

Network issues, browser cache problems, or logging in with the wrong account

You can try refreshing the page, logging in again, switching browsers, or checking whether you are using the correct account.

Summary

If you are an early-registered Binance old user and you previously did not bind a referral relationship, you can first check whether you are eligible for referral binding through the entry below:

Referral binding entry: https://www.bsmkweb.cc/activity/referral/bind-ref

If the page supports referral binding, just follow the on-screen prompts and fill in the invitation code: BNB33

In one sentence:

It’s to check whether your old account supports referral binding through your personal entry; if it does, complete the binding through the process and enter the invitation code BNB33.