Whenever any law which provides for the collection of fees or other payments by a state agency does not authorize the refund of erroneous or excessive payments thereof, refunds may be made or authorized by the state agency which collected the fees or payments of all such amounts received by the state agency in consequence of error, either of fact or of law as to:
RCW 43.01.072
Refunds of fees or other payments, budget and accounting system: RCW 43.88.170.