2, it can be collected. Nowadays, credit cards are all beautifully designed, especially the same credit card will have many card faces. Many card lovers who are addicted to collecting cards may handle a series of cards, but they will not have the opportunity to collect them.
3. Curve lifting. If you can't withdraw cash from your existing credit card, you can apply for a new credit card, usually a higher level. If the card is approved successfully, the credit limit is higher than the original credit limit, which is equivalent to the successful withdrawal of the curve, and then call to equalize the credit limits of the two cards.