To receive payments to be held in trust for the payment of premiums that may become due and unpaid on any contracted insurance covering improvements carried by purchaser. Any unused balance of each deposit shall be held until such time as maintenance of such amount becomes unnecessary at which time such funds shall be refunded to purchaser. To receive payment of premium from purchasers for Group Life Insurance providing coverage for canceling indebtedness of purchasers and to make payment on insurance contract as premium became due.