Questions regarding §457 maximums and refunds should be directed to Louisiana Deferred Compensation at (225) 926-8082 or toll free at (800) 937-7604. FullTime and Permanent Parttime employees can enroll in the 457 Deferred.Welcome. MissionSquare Retirement is pleased that the City of Oakland has selected us as the sole provider for your 457(b) Deferred Compensation Plans. For more information on loans, contact the. Louisiana Deferred Compensation Plan at (800) 937-7604. Deferred Compensation is a program that allows you to save and invest a portion of your salary today, for the purpose of augmenting your retirement income.