Any HMO licensed to do business in Texas that offers coverage to Medicare beneficiaries under the provisions of Subchapter XVIII of 42 United States Code, Health Insurance for the Aged and Disabled, must file with the department a copy of each advertisement related to the coverage that is produced by the HMO or its agents and is an invitation to inquire or invitation to contract as defined in §21.113 of this title (relating to Rules Pertaining Specifically to Accident and Health Insurance Advertising and Health Maintenance Organization Advertising) no later than 45 days before its use. Material must be filed in compliance with §21.120 of this title (relating to Filing for Review). Material filed under this paragraph is not to be considered approved but may be subject to review for compliance with Texas law and consistency with other documents.