I have indeed informed Nissan to make them aware. As per my previous post, there is very little point in having a 3 year warranty if the car develops faults his quickly and when it does you are without it for nearly two months. I shall definitely not be using this "HPC" again.
The 7 weeks breaks down as follows:
1 week before the car could be booked in to be looked at
5 days to determine the problem
3 weeks waiting for the part
2 weeks for an appointment to fit the part
8 days to fit it