Stop Shopify from Skipping Over Customer Information at Checkout

[RoxanneWilson]

Each of our customers have accounts (we're wholesale B2B). Recently Shopify has begun skipping over the Customer Information at checkout, and jumping directly to shipping options. Many customers have multiple locations that they ship to so, this is not ideal. We've had them shipping to the wrong locations because the page acts as not only a reminder to change the address but allows them to do so without navigating back. Please someone give me the code to force the information page (even when Shopify thinks it has the info from the account)