Hello, you said the credit card limit. Generally, the credit card quotas given by the four major banks of ABC, ICBC and CCB will not be too high at first. The 600 yuan limit means that your credit card can be overdrawn in 600 yuan. That is to say, if you don't save money in the card, you can use 600 yuan at most, but you should return it in time, otherwise it will affect your credit. If your credit card is in good condition and repays in time every month, the bank will increase the limit for you according to your actual situation. I hope my answer is helpful to you!