Collision Detection for Camera Relative Controller

Greetings. I am currently working on a mobile game project, which I use the Camera Relative Controls provided in the Standard Asset (Mobile) package as a framework. Things went on well until I tried to make the platform that supports my player in the game move up and down. The player is failed to stay on the platform when the platform move upward. I have tried various ways to overcome this issue, including the popular "Use the platform as the player's transform's parent" way. However, that requires the platform to detect the player through collision. I have tried to apply rigidbody and collider onto the platform and the player, but even when they meet each other (i.e. the player stands on the platform), no collision is detected. Increasing the collider's size has also been tried, but that does not work.

So the main question is, how can I make the player move with the moving platform while using Camera Relative Controls? Thanks a lot in advance and have a nice day.