I rang the local dealer Service Dept as I wished to know what was happening as I did not get the phone call I expected yesterday. I was told that the car was ready for collection. The Leather Specialist had a look, it seems, did what he could, it seems, which was not very much.
BMWCS have instructed the dealer not to do any work on the car and that they will be directly in touch with me which they have not. The dealer thought they would have done so already. So I am back to square one with a baggy driver's seat and a colour mis-matched rear bumper. Not a good result.