Lingnantong function can be used when the credit card is not activated, but the function of flying charge (automatic recharge) can only be used after the credit card is activated. After the card is activated, you only need to put the card into the induction area of the self-service recharge machine and click Feichong to realize quick recharge. There is no need to check the secret, and the recharge amount is automatically deducted from the Guangdong hot-purchased credit card account, enjoying the interest-free period of consumption.