If you gave him the "on.toribash.com" link, that will just get you 30 TC. If you gave him the "Spam Link", that should give you 100 TC. And did your brother create/activate his account?
If you are both using the same computer, it won't work. Also, it takes a while to process.
[23:23:53] <AndChat|700625> Blue eyes ultimate dragon best card
[23:24:29] <AndChat|700625> You know the one with 3 heads
[23:24:39] <~Lightningkid> just like my dick
[11:35:40] <box> Hampa suck
[11:36:21] <hampa> not the first to tell me that today