Although the credit card of China Merchants Bank does not support the red envelope function of WeChat wallet, it does support the payment function. However, users may encounter payment failure when using it, which is mainly due to the following reasons:

1. Online payment function is not enabled: If this function is not enabled on your credit card, you can log in to the issuing bank in official website or mobile banking.

2. Insufficient available amount: If the amount of goods purchased exceeds your current available amount, the payment will fail. It is recommended to check the specific amount and apply to the bank for a temporary withdrawal when necessary.

3. Payment limit: China Merchants Bank's WeChat payment limit is 3, yuan per day. Once this amount is exceeded, the transaction will fail.

4. Communication failure: Mobile phone network problems may also lead to payment failure, so as to ensure stable mobile phone connection.

it is worth noting that wechat payment supports a wide range of banks, including credit cards and some debit/credit cards of many banks including China merchants bank. With its safety and convenience, WeChat payment provides services for users in many scenarios, such as purchasing tickets on 1236 website, static bar code payment and high-speed travel payment.

generally speaking, the payment function of China merchants bank credit card in wechat wallet is subject to some conditions. users should pay attention to these restrictions and ensure the normal account status when using it.