Depending on where you are (global, regional, country) your
sales, service, support, or training options could vary a bit.
• Mac Repair - Official Apple Support
https://support.apple.com/mac/repair/service
-or-
• Get Support - Apple
https://getsupport.apple.com/
-or-
• Apple Repair and Repair Status Check - Official Apple Support
https://support.apple.com/repair
These cover most the same territory; you can ask about "send-in"
service/repair. ~ Also if you received a case or incident number, ask
how to escalate this issue to a higher level of attention.
Depending on your region, or country, etc you may see if there
are other 'authorized' sources of service and repair in your area.
Several 'authorized' Apple service repair business are available and
are independent business; & not officially Apple. Your mileage may
vary; depending on who/where/how your Mac service was done.
Global/regional/country:
• Apple - Find Locations - Location Selector
https://locate.apple.com/findlocations
• Apple - Find Locations (near/regional/country)
https://locate.apple.com/
Most here are voluntary participants, in peer-to-peer
discussions help; and are not representative of Apple.
Good luck & happy computing!
🌞🌿⛵️🌤🎣🤖🏕🐝⛄️🌻