GOG Purchase of main game, Humble purchase of White March?

[jaydeflix]

Is that actually possible? I bought the 2 expansions on HumbleBundle during the sale before I remembered that I bought the game on GOG, so I can't actually redeem the key on Steam because I don't own it. I'm guessing I'm SOL (unless I gift the key to a friend) and wait for a steam sale for the expansion....

[Suen]

Contact Humble Bundle. You have 60 days, as long as the key is unredeemed.

https://support.humblebundle.com/hc/en-us/articles/203662804-Can-I-have-a-refund-for-my-purchase-

[jaydeflix]

I probably should have clarified: SOL in terms of using what I bought =)  I actually do have a friend who got it via Steam who might like the keys, and have no issues returning it.