Hey there,
Limitations with Blizzard Support for Activision titles.
In regards to Activision, we only handle the distribution of the game client for Activision. We will assist with anything related to the desktop application and anything with the game client that involves purchasing, activating, downloading/installing and launching. Anything that occurs after you can press the play button is going to be addressed through the Activision support portal: Support Options | Activision Support
Now if anyone has encountered the same and found a solution they are welcome to share it but for more direct troubleshooting the best we can recommend here is to reach out to Activision Support.