Larian Studios Forums Divinity - Original Sin Divinity - Original Sin - General Divinity Anthology Bonus:The Golden Grail code ???

I bought the Anthology set a long time ago and if you remember you included a bonus code for the grail for Original Sin.

Steam isn't accepting this code.
I put the code into my Larian Vault account and it accepts it but in my account status it says the grail will be available in 2013.

So can you please let me know how I go about aquiring my grail via steam.