Ontario Ombudsman Andre Marin says he has received 79-hundred complaints about Hydro One billing.

And Marin says there are even more coming in.

In his annual report Marin says the most complaints his office has ever received about a single government organization- involve Hydro One billing.

Marin has been investigating the company since February.

The ombudsman also says his probe into unlicensed daycares – which was launched after the death of a two-year-old girl, is expected to be released this summer.

Marin’s office got nearly 27-thousand complaints last year.

That’s a record – and an increase of 37 per cent from the previous year.