When you view your usage in the app and My Account, you should be able to switch between viewing your usage cost (by selecting the 'Cost' option) and usage amount (selecting kWh for electricity or MJ for natural gas).
If you can see information in your usage amount screen but not any cost information, this could be because your bill is 'blocked', and we’ve delayed issuing it to you.
For more on this, see Delayed bill.
On your Usage screen you can switch between cost and usage to see what you've used or spent.