Access: Settings > Shipping > Flat Rate
Flat rate shipping is a standard rate charged to transport packages, regardless of weight or size.
To add a new flat rate, click on Add Flat Rate.
Fill in the cost and choose Geo Zone which applicable with flat rate shipping,then Save.
Title*: The Shipping Name that will display during checkout process.
Cost*: The Shipping Fee to charge per order.
Tax Class: Choose None if shipping fee is not subject to GST.
Geo Zone*: The customer location that entitled for this shipping method.
Sorting: The sequence of this shipping method in ascending order during checkout process when you enable multiple shipping methods.
Status*: Enable to live on your Igniter webstore.
Click Done and Install button on top right, and perform Clear Cache to have changes on your Igniter webstore.
Try to make purchase on your Igniter webstore to see if Flat Rate Shipping Fee is charged.