The reply states that in the first instance of showing a flight cost all mandatory items must be shown.....that's what and as Ryanair aren't showing theses taxes and charges you can't get a breakdown...
Here's what you earlier put:
Ryanair have been reported to Trading standards who are investigating their decision to remove from view all taxes and charges on the first screen showing a flight.
The fact that the taxes and charges presently don't appear as they should is irrelevant to this discussion because the thread starter - who is in possession of the breakdown of taxes and charges, having navigated to the next page - wants to know what constitutes a particular charge, namely insurance.