Solution:
1. Because Uber needs at least one payment binding method, it unbinds the credit card with Alipay and adds Alipay binding in Uber.
2. Cancel the credit card on Uber at this time
3. Cancel the Alipay withholding, which can be cancelled in the Alipay webpage withholding settings, and in Alipay, account settings --> Apply authorization and withholding-withholding cancels Uber withholding.