I purchased a MAC desktop in January 2020 and its not working, I can't find my receipt

Follow these helpful steps:

1. Click 👉🏼 Apple online store.
2. Click on the item from the list that appears.
3. View or print this page (your receipt).

Next, let’s get your Mac repaired. 😉

Get support now by phone or chat,

set up a repair, and more.

Call Apple Support at 1-800-APLCARE.

▷ Contact Apple Support. 

Perhaps this will help https://macreports.com/how-to-find-receipts-for-apple-purchases/