Hello Tatyana,
Just FYI - Everyone in these community forums is a user of Apple products just like you. This is a user to user forum and therefore Apple is neither represented nor present here.
It appears that you see the payment for your MacBook Air pending on your credit card and it is not posted yet. If my assumption is correct then the answer is that the payment will post once your MacBook Air ships.
I want to encourage you to contact ➔ Apple Support and confirm what I stated above since I am not sure of any temporary policy changes due to the current events.
Axel F.