Mine has been working for a long while now. There is usually a delay of about 2 days to see today's usage. So I can see detailed daily usage up to 2 days before the current date.For example if today is 15th April, I can only see up to 13th April. I will have to wait till 17th April before I can see usage up to 15th April.Occasionally there is a delay of just 1 day.