Hello Tarek,
I don't know of any other garages except the Seat one which has VCDS.
It's not just the MY that's applicable here but the cluster part number, as yours is a petrol your cluster will have totally different firmware from mines.
Until I hear from someone with the same P/N cluster from a MY12 2.0 TDi 140 that has succesfully enabled staging I'm just going to accept it can't be done.
Paul
How do I get the cluster P/N?
Is it stamped somewhere or does CVDS come up with it?