If you'd like to complain to someone at Capital One who has any authority, contact:
Pat Jernigan at firstname.lastname@example.org; or Laura Farley at email@example.com or Jose Castanon at firstname.lastname@example.org.
Hope this information helps.
These individuals are based in Richmond VA the headquarters for Capital One. If you try to contact them online or by phone, you will get a low level functionary who, more likely than not, will not be able to assist you. If you contact these individuals, you may or may not get some satisfaction. Best of luck.