A college student card can be used to save money, but it doesn't mean anything.
1. Deposit the money into the credit card account without interest.
2. There is also a handling fee for recovering the spilled money.
The function of credit card itself is a tool for credit card consumption and early consumption. The bank gave you the right to spend by credit card in advance, so you can use it.
If your Roncari has money, it means that the amount you can pay has increased.
For example, if your spending limit is 1 1,000 yuan, and you deposit it in 500 yuan, then your available amount in this period is 1, 500 yuan, and the amount to be repaid is -500 yuan.
I suggest you take a good look at the credit card handbook issued by CCB.