What exactly do you mean by "earn free tc"
Do you mean the surveys and such?
Nabi Studios isn't responsible for third parties not getting you the toricredits.
I suggest waiting for a while, and if they don't send you the toricredits, send them a message.
Experience has learnt me that the surveys rarely work, I suggest just giving up on the surveys, and try earning some toricredits the old fashioned way:
In-Game.