Why can’t I use a credit card 24 hours after it is opened? There are two common ways to use credit cards, one is credit card consumption, and the other is credit card cash withdrawal. The usage time after activation will be different for different usage methods. 1. If you are using a credit card for consumption, there is no prescribed usage time after activation. As long as the activation is confirmed, you can use the credit card for consumption, including using the credit card to swipe the card on the card swiping machine at an offline merchant, or binding a credit card for quick payment on WeChat or Alipay. OK. 2. If you are using a credit card to withdraw cash, many banks do not support cash withdrawal on the same day of activation. Therefore, the credit card can only be used 24 hours after it is activated. This means that you can withdraw cash by credit card. However, each bank has different regulations on cash withdrawals, so you need to check with the credit card issuer for details. It should be reminded that no matter how long it takes to use a credit card after activation, the different ways of using the credit card are very different, such as the limit and fees. For example, if you use a credit card for consumption, you can use as much as you have, and you can also enjoy a certain interest-free period without paying any fees; but if you use a credit card to withdraw cash, you can only use up to 50 of the limit, and you cannot enjoy interest-free. Period, interest will be calculated at a daily interest rate of 5/10,000 from the date of withdrawal, and 1 to 3% of the cash withdrawal amount will be charged as a handling fee. The above is the relevant introduction to "Why can't a credit card be used after 24 hours after it is opened?" I hope it will be helpful to everyone.