If a surplus lines insurer has assumed a risk and if the premium therefor has been received by the surplus lines agent or broker who placed the insurance, then as between the insurer and the insured the insurer is deemed to have received the premium due to it for the coverage; and the insurer is liable to the insured for losses covered by the insurance and for unearned premiums upon cancellation of the insurance, whether or not the surplus lines agent or broker is indebted to the insurer. Each surplus lines insurer assuming a surplus lines risk under this section thereby subjects itself to the terms of this section.