Can I change my workout and meal plan once I have started the AF Challenge? 20 September 2021 00:57 Updated Once you select your goal, your specific workout and meal plan will be allocated to you. At any stage this can be changed via the My Profile tab in the AF Challenge portal. Related articles What is the AF Challenge? Who should I contact if I have billing concerns or if I need to change the account linked to my membership I have some membership billing questions. I want to cancel my membership. How do I go about it? How often should I exercise during AF Challenge? Comments 0 comments Please sign in to leave a comment.