No, you will have two credit cards after the gold card is issued. However, the credit limits of the two credit cards are shared. For example, the credit limit of the card with higher sharing limit is 20000, the old card is 15000, and the sharing limit is 20000. When one card is swiped, the credit limit of another card is also reduced. If you don't want to use your old card, you can call the credit card hotline to apply for cancellation.