When it comes to running an ecommerce site where most business takes place online, nothing builds trust more than an overly obvious and well-presented 'contact us' feature. This is especially true when selling high-end merchandise or technical products. Never make it hard for a buyer to get in touch or request support. Consider the contact page a feature of the website. Include multiple ways to reach out, including phone, email, and an online form. Some companies with brick-and-mortar stores offer online appointment setting via their contact page. Be sure to add customer service social links and Google maps for locations.