A toll-free phone number for your Shopify store gives you credibility and signals your customers you’re serious.
From the Schneier on Security blog
I have 500 copies of each book available. When they’re gone, the sale is over and the price will revert to normal.
Please be patient on delivery. It’s a lot of work to sign and mail hundreds of books. And the pandemic is causing mail slowdowns all over the world. I’ll send them out as quickly as I can, but I can’t guarantee any particular delivery date. Also, signed but not personalized books will arrive faster...