The reasons for the failure of online payment of China Merchants Bank's credit card are as follows, for reference only:

1. The online payment function is not enabled for this card (please log in to online banking to enable it).

2. The payment amount exceeds the online payment limit (please log in to online banking to reset the online payment limit).

3. No query password was entered (please reset the query password immediately).

4. Exceeding the single limit of specific payment channels of China Merchants Bank;

5. The credit card available amount is insufficient (please log in to the online bank to check the available amount).