How Can I Play All Campaigns?

Hello, I have all 3 starcraft 2 Sets (Wings of Liberty, Heart of the Swarm, and Legacy of the Void). How come i can only install and play Wings of Liberty? Please advise how i could install and play the other 2 sets
Thank you

SC2 installer already contains all campaigns. Once you’ve purchased all expansions, you’ll automatically have access. If you’re unable to play expansion campaign, use your ticket to Blizzard Support.

Howdy!

Adventurer This may be the wrong battle.net account. Though it’s many years old it has no CD keys, or purchases ever. It really wasn’t ever used. Likely created in the past and you returned to the wrong account. I would recommend thinking about any other Emails you used in the past and trying to log in that way.

Thank you.

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