VXOC Astra-J/GTC

I have a astra gtc 2l ctdi. It is Pulling to the right even after been tracked 3 times. It's had lesser tracking done and done at main dealer. Tire pressure are right. Same amount of ware of on both front wheels. Any help thanks.

Moved thread to better location

jack the car up and check for any play in the wheels
you would be best to get the car looked at go to your local garage
and get a proper diagnosis dealers will just fob you off