If a Ping An credit card transaction is abnormal, an invoice is required.
If Ping An Bank’s credit card requires you to provide an invoice, then you must be using this credit card to cash out, because there is no invoice for cashing out with a credit card.
If it is a Ping An credit card, the risk control is to provide an invoice for large purchases. If you cannot provide an invoice, you can provide customer service with favorable evidence of credit card swiping.