Required. Starting from August 1, 2018, WeChat has introduced a handling fee for credit card repayments. The charging standard is 0.1% of the repayment amount, and the minimum charge is 0.1 yuan. There are some specific users or situations where the handling fee can be waived. For example, users who are Platinum and Gold Members of Wealth Management and the IDI Investment Plan with fixed transfers of more than 500 yuan can enjoy free repayment services. In addition, WeChat will also launch some activities or offers from time to time, allowing users to enjoy free repayment within a specific period of time.