A learner asks for an extension for a written assignment. The learner states that he has just started chemotherapy for cancer and has not felt well, and that three more days would really make a huge difference. You grant the extension. It is now two days past the extension deadline and no assignment has been submitted. You contact the learner who says that he has missed the extended deadline because of illness, and he asks if he could have just one more day. You grant this, but identify there will be no more extensions. Another learner tells you that the first learner is lying—there is no cancer. What is your action?