Leave it for a month.

If there is no notice, start using it again.

If someone informs you about the situation, let's talk.

Given your situation, uh ...

Maybe it was a gift from China Merchants Bank when you swiped your card.

It may also be a gift you got with credit card points.

Personally, I feel that someone exchanged your points for gifts.

Then the gift will be sent directly to you.

Also, someone else sent it by mistake. ...