Feature your customer service phone number
The simple act of adding a phone number, preferably a toll free number on to the website header establishes trust and help customers feel comfortable shopping with you. Displaying the contact number on the website header will make it easy for shoppers to locate it irrespective of the page they are in. Do keep in mind that doing so will be of any good only if you have enough staff to respond to the incoming calls. Also, clearly specify if you answer the calls only during specific hours.