Steam gift

[zookuw]

You can't buy garry's mod without a source game.

Saw the steam game list, how the hell did you pull that off?

Contact support they should give you a refund without a hassle.

[Ad Bot]

[Funnelcakes]

bump :u

[pecon7]

Contact support they should give you a refund without a hassle.

[steve5451]

Don't ask for TF2 as the source.  Go for HL2 so you can actually see some stuff.

Gmod already comes with all the default Half - Life 2 source content.
She should get CS:S.