So after my letter to Wangara and informing them of the TSB I recieved a letter back saying that they still believe the noise to "normal". I'm now in the process of arranging a time with the regional manager to take him for a drive.

BTW this noise is getting worse for me. I can recreate it without even blinking.

Also advised them that the GTI I took for a test drive (they didn't want me to take the one I actually bought) didn't have this sound, not that I could tell anyway and I was never told to expect such a rattle if indeed this is so "normal"

Will keep you guys up to date.