Each agent shall at all times keep the State Board of Insurance informed of the agent's current address. Such address shall be included in each license application and each license renewal form. In the absence of the submission of a specific written request to change that address, which must be separate from any other submission, the agent's current address is presumed to be the address on the most recent license renewal or license application form, whichever is latest. Such address shall be considered the agent's last known address for the purposes of notice to the agent by the board. Any request for a change of address shall be addressed to Agents License Division, State Board of Insurance, 1110 San Jacinto Boulevard, Austin, Texas 78701-1998.