After the bank credit card has been used for three months, you can apply for a temporary credit card limit to the customer service of the credit card center of the credit bank.

When using the Bank of Communications credit card, if you find that the approved credit limit is not enough, you can call the 24-hour customer service hotline to contact the customer service specialist to apply for a temporary increase in the credit limit. After the expiration of the validity period of the temporary adjustment of the credit card limit of Bank of Communications, it will be automatically restored to the original limit.

If you have other specific questions, I suggest you call the customer service staff of the bank, hoping to help you.