At least once in each six (6) months, the prorater shall render an accounting to the debtor which shall itemize the total amount received from the debtor, the total amount paid to each creditor, the total amount which any creditor has agreed to accept as payment in full on any debt owed him by the debtor, the amount of charges deducted, and any amount held in reserve. A prorater shall in addition render such an account to a debtor within seven days after written demand.