You can follow the steps below to increase the storage on your Dedicated Hosting by Bluehost Order.
Step 1: Log in to your control panel. Learn how.
Step 2: Navigate to the Order Information view.
Type the Domain Name of the order in the search field on the homepage, select Order from the drop down and click on Search.
Step 3: Add the required Add-ons
Click on Manage Add-ons.
Select the required Add-on from the drop-down menu and click on Add.
Click on Buy to proceed to pay for the Add-on.