I have been asked that when I called about our 3400kJ Feb bill. My friend Dave was asked that about his 3500kJ Feb bill, and I have seen it at least twice in the links.
Two things this reveals, other than it being an insult.
1) it shows to them that your consumption is abnormal. Why else would that even ask that? Thus they are aware of the high consumption readings.
2) it shows that the people on the phones have been trained to deal with caller's upset with their bills. Thus the utilities know they have a problem with the meters and have trained their call people to misdirect you as much as possible.
Me, I challenge such put to me. Ask the person on the other end how they like working for a company that knows they are ripping customers off, and how they like being trained to misguide us.
The utilities must be getting hundreds if not thousands of irate customers with huge bills, so these people must be dealing with them on a daily basis.
Do not take the nonsense they are putting back at you. Record the day and get the phone person's name and make notes of what they said to you. We will need that as evidence. See next post.