(1) All funds received pursuant to a solicitation permit shall be deposited and held in escrow in a bank or trust company under an agreement approved by the commissioner. No part of any such deposit shall be withdrawn, except:

(a) For the payment of promotion and organization expenses as authorized by the solicitation permit; or

(b) for the purpose of making any deposit with the commissioner required for the issuance of a certificate of authority to an insurer; or

(c) if the proposed organization is not to be an insurer, upon completion of payments on stock or syndicate subscriptions made under the solicitation permit and deposit or appropriation of such funds to the purposes specified in the solicitation permit; or

(d) for making of refunds as provided in RCW 48.06.170.

(2) When the commissioner has issued a certificate of authority to an insurer any such funds remaining in escrow for its account shall be released to the insurer.