Cannot install Acrobat Pro 2020 prepaid card on Mac Mini

I purchased a prepaid copy of the Acrobat Pro 2020 from a store (it is a physical card with a redemption code). I sucessfully retrieved the serial number from the Adobe setup website and clicked on the link, but it keeps downloading as an .exe file not a dmg file despite the card clearly marked as for macOS. When I clicked to install it my Mac gives the fail message that there is no compatible program to open the .exe file (which is what I would expect knowing that I need dmg for Mac). Is there a way to get the prepaid card version to download the dmg copy instead of the .exe copy. I know there is an online download page, but that requires me to purchase a copy/subscription again, which obviously I don't want to do having already paid hundreds of dollars for the prepaid version. My computer is a Mac Mini M2 (2023). Thanks for any help. PS: I have been trying to find a phone number to ring Adobe for HUMAN support. Can't find that either, if anyone can help with that.