Guild Wars 2

I bought HoT and activated it.I can’t find the key to the second game that i want to give to my friend.Where can I find the key???

There is no other key. There is one key, which can be used to either upgrade an existing account with HoT or create a new account with GW2 and HoT.

So if I already activated Hot,I cant get the second game?

You don’t get a second game. The base game is a free bonus to people who don’t have it already – people who upgrade the base game to HoT get a character slot, or some sort of refund if they bought the base game recently (this year, I think).

Atsterk.6574:

So if I already activated Hot,I cant get the second game?

Correct.
It was either a single new account with GW2 + HoT or a upgrade for an existing account for HoT.

lordkrall.7241:

Atsterk.6574:

So if I already activated Hot,I cant get the second game?

Correct.
It was either a single new account with GW2 + HoT or a upgrade for an existing account for HoT.

Actually…
It is changed now.

It is either a new account with GW2+HoT or an upgrade for an existing account with HoT+ an extra character slot.

If you bought the game after January 23, 2015 directly on buy.guildwars2.com, you can get a refund for the price you paid for the core game if you get HoT.
People who bought the game after January 23 from a thirdparty store or who bought the game before January 23 in any other way get a free characterslot.