Nothing herein shall prevent a person who may be liable for damages on account of the personal injury from making an advance payment of all or any part of his or her liability for the damages; any sum paid during the twenty days by a person liable for damages on account of the personal injury is allowed as full credit against any damages which may be finally determined to be due an injured person.
Any settlement, release of liability or statement entered into, obtained or made in violation of this section may be disavowed by the injured person at any time within one hundred eighty days from the date of the personal injury by executing a written statement of disavowal and thereupon forwarding a copy of the same to the person violating this section, in which event the settlement, release or statement may not be admissible in evidence for any purpose in any court or other proceeding relating to the personal injury, if any consideration paid for the settlement of or the general release of liability for the personal injury, at the time of the forwarding of the copy of the written statement of disavowal, is repaid or returned to the person who paid the consideration.
W. Va. Code § 55-7-11a