What can I do if I have paid a bill with an incorrect amount?

If you believe you have paid a bill with an incorrect amount, you can request a correction through the following channels:

 

Why might my bill show estimated rather than actual amounts?

Bills can be either final bills, based on recorded consumption, or interim bills, based on estimated consumption. Where consumption has been estimated, the amounts will be recalculated in later bills, after an actual meter reading or once you have submitted a self-reading. You can submit a self-reading during the periods indicated on your bill – find out how here. With self-readings, you will always be billed for your actual consumption, with no estimates based on past usage.