I will tell you how to increase the amount and the room for improvement. Generally, if you spend more than 10 times a month and use it continuously for 3 months, the bank will raise the amount for you. If you haven't automatically raised the amount, you can call to apply for the amount, and he will help you raise the amount. But you should be aware that you are spending money by swiping your card in a physical store, and a dollar will do. Remember, online shopping does not count. Generally speaking, the space for raising the amount is 65%-200%. According to your current credit card limit. Credit cards are harmful things, really. Reasonable use, I hope the answer can help you and I hope to adopt it. I really appreciate it．