You have received a letter from us indicating that you can pass on your meter readings up until 15 days following the posting date.
For instance, if you received a letter dated 5th January, then you can pass on your meter reading until 20th January.
After this date, your meter readings will be estimated on the basis of your consumption in previous years, taking into account the climate data that applies for your consumption period.
This estimate is calculated a few days after the expiry of the period of validity of your reference number.
The estimate is then sent to your energy supplier, so that they can prepare your annual bill.
If you do no agree with the estimate, you can ask your energy supplier to correct it, if appropriate.