Every domestic stock and mutual insurer shall have power to comply with any statute, ordinance or other law of any state, territory or political subdivision thereof (including the District of Columbia) imposing any license, excise, privilege, premium, occupation, or other fee, or tax, and to pay such fee or tax, unless prior to such payment such statute, ordinance or other law shall have been expressly held invalid by the State court having final appellate jurisdiction in the premises, or by the Supreme Court of the United States.