My post that Stagger points to is a copy of the service schedule for my car that was supplied AT THE POINT OF HANDOVER, i.e. when I took possession. In conversation, I was given to understand this applied to all new sales, across the range. The unspoken implication being it was not cost effective to keep re-printing handbooks every time something changed. Having said that, the handbook I received did contain R specific stuff.
All of this is no help to owners of older cars and the only thing I can suggest is they contact thier dealers for confirmation/explanation of just what the service schedule is for their particular vehicle, even better if they can get a print out like I did. May not save every argument but any owner would be on a stronger footing if they could wave an official piece of Peugeot paperwork.