If you can’t take a meter reading, and your supplier needs to generate a bill, estimated readings will be used instead. It’s best not to miss giving too many meter readings, as it can cause your bills to drift and be inaccurate.
If you’re unable to take readings because you’re an older person, have a disability, or for some other similar reason, you can contact your supplier and ask to be added to their Priority Services Register. You can then ask for meter readers to be sent round on a regular basis, who will take and submit readings for you which will keep your bills in line.