copayments on covered Medicare Part Aand Part Bservices tell your provider you are cost-share protected and 
can't be charged. If you have already made payment you have the right to arefund. If your provider will not stop 
billing, you can call us at 1-800-457-4708 or you can call Medicare at 1-800-Medicare (1-800-633-4227), (TTY 
1-877-486-2048). Humana or Medicare can ask your provider to stop billing you and refund any payment you 
have made.