I have Adobe Acrobat Pro on my MAC as trial, pressed the link to buy full access, paid annual fee, it says MAC does not support this, I need to download in Windows, please help?

Perhaps you accidentally subscribed to Acrobat STANDARD which is WIndows only. If not, Please post a screen shot showing the error message. You cannot email it, but please reurn to the forum and use the picture icon to post your shot.