Lots of guys use the CAA in KL and you can have remote ground school from UK, if have you enough hours on MMC/type (500 I think, but check UK CAP) you don't need to go through a ground school provider to sit exmas. If so you can do online with CATS, BGS, Aviation Exam etc. The CAA are changing the QB around Q2 I have heard and they are also adding a new topic PBN so that will be 15 in total. Hopefully that answers your question.