What is a down payment?
The down payment bill is calculated on the basis of estimated consumption, for electricity supplies the power and historical supply readings are considered, while for gas supplies the historical supply readings are used, based on the periods of the year and to the contractual year volume subscribed.
What to do if your bill has a lower estimated reading than what you read on the meter
In this case it is sufficient communicate the self-reading in the period indicated on the invoice (you can find this information on the first page of the bill). In the next bill you will find the billed consumption based on the reading communicated.