AppleCare plan
I'm trying to register my applecare plan, but after entering serial number I've got following error:
"We’re sorry, but we’re unable to verify your serial number at this time. Please try again later."
MacBook Air 13″, macOS 11.2
Are they an authorized reseller? You do need to contact Apple; do not know if you can purchase Applecare purchased at a third party place. I also do not know if Applecare is available in your country.