Help with Lic switch from mac to PC

Hi I am new to the forum and new to painter :)

I purchased painter 2017 never got to use it as i was working in a studio

I upgraded to painter 2021 in March of 21, 2 months after I did that my Mac died and I replaced it with a PC machine.
i would like to get the Painter version for Win I never even got to use it before but i would like too. I m having an issue getting information on how to do this. 

I would only be using it on the PC a this point...

I was even going to purchase the upgrade to 22 but then I realize i still need a code to install on PC and now the upgrade price offer has expired...

Any ideas?