Catalina keeps on downloading instead of Big Sur with macrecovery.py

I'm following this guide: https://dortania.github.io/OpenCore-Install-Guide and when I use this command (the one that should be downloading Big Sur):

python macrecovery.py -b Mac-E43C1C25D4880AD6 -m 00000000000000000 download 

I get the .dmg file for Catalina and not Big Sur. I believe it is something wrong with the MacID and not sure how to get ahold of a different one.

Bear in mind that I am starting my hackintosh from the windows side so using gibmacOS is not an option.