A toll-free phone number for your Shopify store gives you credibility and signals your customers you’re serious.

From the Krebs on Security blog

One of the most expensive aspects of any cybercriminal operation is the time and effort it takes to create large numbers of new throwaway email accounts. Now a new service offers to help dramatically cut costs associated with large-scale spam and account creation campaigns, by paying people to sell their email account credentials and letting customers temporarily rent access to a vast pool of established accounts at major providers.