If you do not repay the 500 yuan loan from Alipay and Ant Huabei, the following situations may occur:

1. Credit record will be affected: Overdue repayment will have a negative impact on your credit A negative impact on your record, which could lead to difficulties when applying for a loan or credit card in the future.

2. Handling fees and penalty interest: Alipay will charge you a certain handling fee and penalty interest based on the number of days overdue, so you will need to pay additional amounts.

3. Huabei quota is limited: If you often fail to repay your bills overdue, Alipay may reduce your Huabei quota and limit your spending power.

To sum up, if you do not repay on time, your credit record may be damaged, additional fees may be incurred, and your Huabei limit may be limited.

Supplementary information:

- If you still fail to repay the debt, Alipay may take further measures, such as collecting the debt through phone calls, text messages, or letters from lawyers. However, specific measures vary depending on individual circumstances and cannot be accurately predicted.

- In some cases, long-term non-payment may be considered malicious debt evasion, which may lead to legal disputes and legal consequences. The specific situation needs to be judged according to local laws.