Cancel task in league

Can someone tell me what will happen when I cancel a task in the tournament league? Will I or my team be punished somehow?

*Will the points for the task you cancel deducted from the clubs total?

*Do you get lesser points in new tasks?

*Can I cancel as many tasks as I want. ( Only play the big reward tasks and cancel the low ones )

So what I want to know is can I cancel tasks happily without some form of punishment?