My parents are thinking of joining the MPC. They fly Y class most of the time although they fly quite a lot. However, I want to make sure the sub-classes that they usually fly on quality for Club Miles before it is worth to join. I looked into CX's website but they just say for sub-classes qualification, please refer to Terms and Conditions. However, I couldn't find the T&C on the website. So, can anyone advise me which Y and J class sub-classes qualify for Club Miles and which do not. Thanks.