(a) An assessment made by an insurer under AS 21.69.440 or 21.69.540 shall be considered to be prima facie correct. The amount of the assessment to be paid by each member as determined by the insurer shall be considered to be likewise prima facie correct.
(b) The insurer shall notify each member of the amount of the assessment to be paid by written notice mailed to the address of the member last of record with the insurer. Failure of the member to receive the notice so mailed, within the time specified for the payment of the assessment or at all, is no defense in an action to collect the assessment.
(c) If a member fails to pay the assessment within the period specified in the notice, which period may not be less than 20 days after mailing, the insurer may institute suit to collect it.