Questions regarding §457 maximums and refunds should be directed to Louisiana Deferred Compensation at (225) 926-8082 or toll free at (800) 937-7604. 457(b) Deferred Compensation Plan.Learn how to start investing and find out which options are available for this plan. For more information on loans, contact the. Louisiana Deferred Compensation Plan at (800) 937-7604. Allegheny County District Attorney Stephen Zappala has filed a lawsuit over what he calls a looming crisis: the county's unfunded pension.