4. a. A program participant who has entered into a redemption contract with the authority may nullify that contract by submitting written notification to the authority and assuming full responsibility for repayment of the full amount of the participant's loan or that portion of the loan that has not been redeemed by the State in return for partial fulfillment of the contract.
b. In the case of a program participant's death or total or permanent disability, the authority shall nullify the service obligation of the participant, thereby terminating the participant's service obligation; or where continued enforcement of the contract may result in extreme hardship, the authority may nullify or suspend the participant's service obligation.
c. In no event shall service at an approved site for less than the full period of service pursuant to subsection d. of section 3 of this act entitle the program participant to any benefits under the program.