Still worried about the fee issue? Look here—this is the most comprehensive guide to re-linking.

## Situation 1: Account created less than 30 days ago (self-service binding without trading-volume requirements)

All conditions must be met at the same time:

1. It is the **main account (parent account)**, not a sub-account
2. Your current account has **no referrer(s) bound**
3. Your account has **not been topped up and has no transaction records**
4. In the past 180 days, you have not verified any other account
Meets → enter the referral code directly to complete the binding; no need to subsequently “trade up” to meet volume requirements.

## Situation 2: Account created more than 30 days ago (re-connection/binding via recall, with qualification thresholds)

### Eligibility (must be satisfied before submitting the application)

1. Main account, not a sub-account
2. The current account has **no referral binding** of any kind
3. **Cumulative trading volume in the 90 days prior to the application ≤ the USD equivalent of 5,000**
4. The account has not been flagged as a trader for wash-trading / volume-manipulation

>
> ⚠️ Key point: If the trading volume in the 90 days before the application exceeds USD 5,000, you will immediately lose eligibility.

### Conditions for the binding to take effect (after you submit the application)

After submitting the application, **complete a cumulative trading volume of USD 150,000 within 30 days**. Only after you meet the target will the referral relationship正式 take effect;