I received 18 consent forms from Kamarul a while back. Obviously, 18 students did not submit their consent form.
As group leaders, you have to monitor closely on your group members and those who did not submit their consent form. I'll leave it to you on how you can collect and remind (thru sms, email) your members.
Your credits (CIP points) and recommendations in the future will depend on how reliable you are as a leader and how your group is managed.
Make sure that you have all the outstanding consent form from your members by Monday (23 May).