We can’t get the Medicare Supplement to pay because no one advised us how to stop the Medicare Advantage plan and return back to Medicare. How can we get out of this Medicare Advantage HMO plan and return to Original Medicare to use the Medicare Supplement purchased last November? Those enrolling into a Medicare Supplement need to be sure they have passed the medical underwriting process and are approved for the Medicare Supplement before enrolling in a stand-alone Part D plan, which will automatically cancel your Medicare Advantage Plan. The average American on Medicare does not realize that they cannot have both Original Medicare and a Medicare Advantage plan at the same time. Insurance agents who are properly trained regarding Medicare Advantage rules know that those enrolled in Medicare Advantage plans should enroll in a stand-alone Medicare Part D plan by midnight December 7th to be disenrolled properly from a Medicare Advantage plan once the Medicare Supplement is approved.