That's pretty impressive.
I had something similar, taking over as QS, as was, a good few years ago. Then, there was no need for such an assessment. Now it all revolves around the cash cow.
To tell you the truth, I would have told them to stick it where the sun don't shine. Just think of the problems they would have had....''65 year NICEIC member firm charged as father retires and son with 30 years experience takes over as head, blah, blah,,,.
Emma Clancy would have had a fit with a bit of media coverage there!
65 years a member, they should be offering you free membership and costs for the foreseeable future and begging you to appear in all their latest publications.
ps. If they do beg, insist on a payment for each occasion.