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
Adam Griffin is still in disbelief over how quickly he was robbed of nearly $500,000 in cryptocurrencies. A scammer called using a real Google phone number to warn his Gmail account was being hacked, sent email security alerts directly from google.com, and ultimately seized control over the account by convincing him to click “yes” to a Google prompt on his mobile device.