Conn. Gen. Stat. § 38a-495d

Each insurance company, fraternal benefit society, hospital service corporation, medical service corporation, health care center or other entity which delivers or issues for delivery, continues or renews in this state any Medicare supplement policy or certificate, as defined in sections 38a-495 , 38a-495a and 38a-522 , shall refund any prepaid premium made by a policyholder or certificate holder for coverage under such policy or certificate who subsequently elects to cancel his or her policy prior to the expiration of the coverage period.