Credit card main card and supplementary card have the same amount. For example, the credit line of the main card is 10000 yuan, and the credit line of the auxiliary card is also 10000 yuan. If the cardholder of the primary card has used the credit line of 5,000 yuan, the secondary card can only use the remaining credit line of 5,000 yuan at most. In addition, the main cardholder can specify the credit limit of the supplementary cardholder. For example, you can apply for a supplementary card with a credit limit of 10% for your child.

The above contents are for your reference. Please refer to the actual business regulations.

If you have any questions, please contact online customer service of Bank of China.

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