Then, it is very important that if you want to buy a notebook with a price of about 4,500 yuan, you have to apply for a credit card and overdraw it by 5,000 yuan at a time.
Finally, if it is interest-free, you should pay off the stipulated arrears (more than 200 yuan you mentioned) within the stipulated repayment date every month.
As for which line is good, don't think about it yet. Find a card that can overdraw 5000 yuan (probably not easy to find)
PS: My credit card is from China Construction Bank. The first overdraft wasn't that much, maybe only 2000, but my repayment reputation is very good, so now it can be more and more.