(1) A contribution levied by the body corporate on any unit owner shall be due and payable by the unit owner 7 clear days after the service of a notice in writing of the levying of such contribution.
(2) Any contribution which has not been paid by a unit owner upon its becoming due may be recovered as a debt by the body corporate in civil proceedings before a competent court and any such proceedings shall be maintainable without prejudice to the rights conferred upon the body corporate by section 21.
(3) A unit owner may not exempt himself or herself from his or her liability to make contributions to the body corporate by waiver of the use or enjoyment of any of the common property or by the abandonment of his or her unit.