In reply to jezb1: Personally I have never been asked not to climb on Psychotherapy area. Nor in the past have I heard of someone asking that you didn't climb there. I have had the dive centre owner ask me to not climb on the Prow, after I abseiled in. This was before there was an agrement not to climb there. To which I said I am not swimming out, so unfortunately for him I climbed out and went elsewhere.
I have heard climbers ask if he had any divers in the pool and when he said no, said they were climbing on the Prow. To which he kind of had nowhere to go in terms of saying no.
Like Mills said Elfyn is somewhere hot and sunny for 6 weeks, lucky begger. I am sure another of the access officers can follow this up in his absence. Try emailing the BMC, as I think if this was the case then someone needs to aproach him and ask politely why all of a sudden he has changed his policy.