All milk purchasers licensed under section 4.1-25-02 shall inform producers of the financial basis on which the license was issued, including the type and amount of security, if any, filed under section 4.1-25-06, by an annual written statement to each producer. A person may not receive milk that will increase the amount due and accrued beyond the amount represented as a basis for the issuance of a license without first notifying the department.