Call the service number to cancel the card. If you have a dollar, you can buy a small thing like a lollipop in the supermarket, then swipe your card and cancel it after spending it.

There are many credit flowers now, many of which are verbal promises made by card holders and are invalid. They earn commission according to the number of cards they handle.

If you don't use it, close your account and don't leave a bad record for yourself in the future. This is very important.

As for the service of BOC, don't be angry with them. State-owned banks are all like this, and it is normal to see more. Unless you have enough patience and time to go to court with them, the average person can't afford it.