Just to update everyone, I've had a reply in writing back from Honda (UK) and Mr Lewis Tingle, Manager Customer Relations (Cars), has told me that using the SVRS system I can have any number of services as required by the SVRS display, including the 'A' and 'B' annual services, for the full 5 years of my Honda Happiness Service Plan or 62,500 miles (whichever comes first). Presumeably, this will be the same for all other owners in my position.
Last week I had an additional 'A' 1 service and the SVRS display now indicates '7' 230 days, which means brake fluid change in 230 days.
I have also been told verbally by two members of Honda Customer Relations Team that the reason why the SVRS system has frequently been requesting an oil/filter change is because the engine oil used in the UK is of a much higher quality than that being used in the rest of Europe and the sensing system used cannot pick up on that. If that isn't an admission that the system is not fit for purpose, I don't know what is! I hope that my postings on this problem has helped other Jazz owners and that Honda Technical Department will finally, after 2 years, devise a fix fir this ongoing error.