I was on Jessops doorstep at 9am, and dealt with this time by a nice young man with floppy Jesus hair.
He handed me my lens and sorted me out with an additional UV filter. I resisted the urge to bring up the 9.45am issue again and left.
Heading for the tube, I suddenly realised that the day before I had walked straight past New Scotland Yard, with its big whirling silver triangle of Law. How could I have missed that?
I am very pleased with the new lens. It does exactly what it says on the tin. I can now take close-up photographs of moths as well as normal photographs of more or less everything else. Fab!