The credit limit is 30,000, which means that you can overdraft 30,000 in one ***, and it is not a one-time overdraft of 30,000. It needs to be divided into several times. The amount of overdraft each time depends on you. Which bank and which card you use? The credit limit of each bank's credit card is different every day, but one thing is certain, no matter how many times you overdraft, the total amount of overdraft will not exceed 30,000!