Account merging

Had to create a new blizz account because my activision account that was linked to my blizzard account got hacked. I was able to link my activision (call of duty) account to the new blizzard account which gave me all my progress and in game purchases back but I obviously lost access to related games like Cold War and MW multiplayer. I also managed to get access to the hacked activision account and I changed the email address and password associated with it so I want to merge my two blizzard accounts to regain my games. Is this possible?

I’m not sure if they can assist with this, but if they could, you’d need to open a ticket and ask there. Account-level issues are not handled in the public forum.