Have DoTA 2 in library, but no key and can't buy the pack on sale.

[Bappy]

I want to play DoTA 2 with someone, and they have it in their library (from the survey) but they never got a key. They want to buy the DoTA 2 pack on sale so they can play it, but since it's in their library, they can't purchase it (even though they can't play it because they don't have a key.) :C Is there any way around this?

[Sloppy Seconds]

When I unlocked DoTA 2 from the survey I didn't get a seperate key; rather, I got a Steam news pop up saying that I got into the beta and an email from Valve saying that I got into the beta. It is quite possible that they already have the game, assuming that they did indeed get into the beta via the survey.

[Tito Shivan]

2/4 packs always sen one of the packs to the purchaser's library.
If you already own the game, you cannot purchase 2/4 Packs.

Only workaround i can think of is to purchase single copies as a gift to send.

[iNFINITY]

I can invite your friend.

[Sake]

ive got 30 dota 2 keys and il change them for 2 cs go