Apple does not recognise my Macbook Air's serial no. It was purchased at an Auction.
How to register my purchase of MacBook Air purchased brand new at an Auction. Apple does not recognise the serial number.
MacBook Air 13″, macOS 12.1
Purchases are registered automatically by authorized resellers and by Apple.
You’ll need to discuss this with Apple Support.
Use the Get Support link in the upper right of this webpage.