An insurer shall deposit promptly additional cash or other or additional government securities eligible for deposit under § 5-701(b) of this subtitle in an amount sufficient to cure any deficiency if: the cash or government securities deposited by the insurer and held on deposit under this subtitle become ineligible for deposit under § 5-701(b) of this subtitle; or the market value of the deposited cash and government securities falls below the amount required under this article.