(a) Except as provided in subsection (b) of this section, a utility may not alter, refuse, or discontinue service to, or discriminate against, the receiver or the insurer solely on the basis that a debt owed by the insurer to such utility for service rendered before an order of rehabilitation or liquidation was not paid when due.
(b) Such utility may alter, refuse, or discontinue service if neither the receiver nor the insurer, within 20 days after the date of an order of rehabilitation or liquidation, furnishes adequate assurance of payment, in the form of a deposit or other security, for services after such date. On request of a party in interest and after notice and a hearing, the Court may order reasonable modification of the amount of the deposit or other security necessary to provide adequate assurance of payment.