Andy,
I've obviously missed some of the earlier correspondence on this topic, but if Olympic is saying you will not have transport or the services of a rep I would ask them to refund some of the cost of the holiday. Their brochure clearly says both transfers and the services of a rep are included in the price.
I agree that most folk (i.e. the non-whingeing sort) don't use the rep. However, I have on several occasions seen that they were really useful for unplanned events or emergencies.
I also agree that you will glean more information from this website than the average rep will know and that excursions are much cheaper booked independently, although I advise checking that they are not for nationalities other than British, as this could mean that you have passed something of interest before you hear the commentary.
Mike