Ralle14, can you explain what is the meaning of the third on the list in sportsbet? What do you mean by 3x the stake?
In other words your reward will be multiplied by three. For example you place 1mbtc you will receive 3mbtc worth of free bet take note this is not the requirement the rest are explained in the terms and conditions which you'll find on the same page. Also with casino promotions I never get the free spins so I hope this new one will wont be the same old promotion which I never get anyways. 
If you participated on the last free spin promotion they're credited just now for me check your account you might've received it too.