Generally speaking, there is basically no holiday on bank holidays, and employees are generally on holiday. Due to the particularity of the bank, the specific holiday arrangements should be subject to its holiday announcement. Banking is a service industry, and there will definitely be someone on duty. Moreover, there is a double salary stipulated by the state on holidays. However, the business hours may be shortened accordingly. Some businesses may not be handled, subject to the notice of the local bank. It's just that banks generally don't handle corporate business on holidays and statutory holidays, and personal business can be handled as usual.
But if the credit card review time is short, of course, it is good to apply as soon as possible.