Cool - thanks for clarification.
The friend apparently found out re the EasyJet prohibition because, not wanting to risk a confrontation at the airport as in Capetonian's post, she spoke to their customer services before booking any tickets. Suspect the call was routed to a centre in a certain South Asian country ;-) and was answered by someone who didn't know what they were talking about. Unfortunately, friend's non-confrontation extended to the point where she didn't even demand to speak to a manager to check this was correct. She will now have another bash at it, with the Carrier's Regulations at hand when she calls (or visits the airport beforehand).