Your realtor is Diane Van Alstyne with Coldwell Banker. You need to have your realtor make the change. Trulia is just a marketing website that allows realtors, property managers, etc. to post listings and rentals. Trulia and Zillow have no control over the content and cannot make a change per your request.
If your realtor (Diane) can't do it, speak to the Broker in charge or the Office Manager.