1, credit card limit;
2. The available credit card amount is insufficient.
3. All-currency credit cards cannot be used in domestic UnionPay channels.
4. The credit card has expired;
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If it is not the above common situation, you can call the credit card customer service hotline of China Merchants Bank and transfer money manually to help you make further inquiries.
(Response time: March 3, 2020. Please refer to the latest business changes announced by China Merchants Bank in official website. )