Today I entered a formal complaint with 2degrees and also sent a PM to the 2degreescare persona on this forum.
I am pleased to reveal that they have agreed to give me a suitable credit on a strictly one-off basis so I guess that's the end of it. I would prefer that they had also changed their policy on this as I still believe it is outside the requirements of the CGA, but, in the end, I got what I asked for.
rprosser