Each licensee shall maintain a separate bank account for the benefit of debtors in which all payments received from debtors who are residents of Connecticut for the benefit of creditors shall be deposited. Every licensee shall keep and use in its business, books, accounts and records which will enable the commissioner to determine whether such licensee is complying with the provisions of sections 36a-655 to 36a-665, inclusive, and with the regulations adopted pursuant thereto. Every licensee shall preserve such books, accounts and records for at least seven years after making the final entry on any transaction recorded therein.