My Stormblood Steam/Windows registration code is invalid?

I just bought the Stormblood on Steam so I can play FFXIV: Stormblood on my PC as well as my PS4, but for whatever reason when I enter in the code on Mogstation it tells me it's an invalid code. I bought all expansion of FFXIV via Steam so I don't understand what's the problem.

What's going on here? I went to "Enter Expansion Code", pasted in the code the first time around, got the error message. Typed it in myself and same story.

Can someone help me? I like to play FFXIV Stormblood on my PC, as I got a brand new gaming PC and I wanted to try seeing how well it performs on it and my main character is in the new SB areas.

Is there anyway to fix this?


EDIT: Nevermind... I realized have bought the Windows version via the SE Online Store and the Steam version was so a friend can play with me at home or my little brother. Aw man... messed that up. Anyway to delete topics?