Cannot use donation package NO matter what on fresh install

I have a Samsung S4 with CMOptimized 12.1 Fresh install. I installed greenify through the play store, then the donation package. When I click an experimental feture I'm asked to purchase the donation package even though it's INSTALLED. I've tried uninstalling and reinstalling both, Clearing data and cache on both. Even tried clearing the data and cache on the play store like it waasa advised for somebodt from the website. But still being asked to purchase it AGAIN and AGAIN. Can anybody help