I think BM are maybe looking at there terms and conditions due to replacement of the CCB , there current terms say to me that the CCBs are covered.The reason I say this is that if you look at the below spec guide it is advertised to the purchaser that they are covered.
These are the UK t and cs and quite clearly states that discs and pads are covered.Ive sent BMWUK an email and Havnt had a reply as yet , I shall resend it for them to confirm.
Sent them this email although I got it a little wrong as its the wiper blades that are covered up to two times in the period .Still had no reply, so would say they are covered but they are not freely saying so.
