There is a Bank of Communications next to Dongfeng Shopping Mall on Pingshan Avenue in Liuzhou, and there is a desk at the door to handle credit cards. If you have proof of education and income, you can handle a higher credit line. The number 25 in the card-raising method means that you have to swipe about 25 cards every month, of course, it is not necessarily 25, and 25 represents only a number. If you want to improve your card, it is best to swipe more than 2. Some card friends ask whether the more times you swipe, the better. Even if you want to swipe more, you must control the reasonable way. You can't. Provide ID card and proof of income. If you are an office worker and your company has paid social security, the local people have paid for it for more than three months in that year, and the foreigners have paid for it for more than six months in that year. If you have other bank credit cards and have been in normal use for more than six months, write down the card number clearly when filling out the form.