I just tried to cancel a domestic MC award ticket within 72 hours and the agent said the points would be forfeited. I thought this rule was eliminated in December 2020. She said it was recently reinstated. I never saw any announcement of this reinstatement. So I asked her to please even exchange the ticket for any dummy date in the future with the same mileage amounts. Once this was done with the new dates I asked her to then cancel it for a full refund of my miles which she did. Who makes up these crazy rules?