I'm just taking it slow at the moment. I'm waiting for the gearbox to get back to my mechanics and hopefully the thing is still broken down so I can get some pictures and then I'll talk to the gearbox specialist that diagnosed the problem so I can get specifics and also a quote on how much it would be to fix, I won't pay to fix but just so they can see how much damage is present with a monetary value.
I'm also looking into the department of fair trading but I'm a bit weary of my chances as this has been an ongoing problem for months now. Starting with them not sending the parts actually needed to fit the gearbox and due to some of the parts being sourced from Nissan it took time for them to arrive.
In a nut shell I want to know exacts and get them on paper so I can start building a strong arguement and not go into this umming and arring.
Thanks for your support guys, it's heartbreaking when you try to do the right thing by people and be nice and they just spit in your face.