I just bought the game on 5/24/2019. There was no informatin regarding Activision shutting down support and only being able to play the game songs on the disc. I really enjoyed the Guitar Hero series and hoped to be able to continue playing it with new content being available for download.
Am I still able to get the refund?
Sorry for being blunt, but most likely Activision will tell you they will not help you. I received mine for xmas 2018 and because I missed the window to file for the refund that is what they told me. I just found out about the refund today, because I got tired of checking the website "For any announcements" after 3 months and missed the ~60 day window of opportunity to file for the refund. Now I am filing a complaint with the Better Business Bureau. Good luck.