smart meter

I am on economy 7 and have just had a smart meter fitted but it doesn’t show when night rate starts and ends. How can I tell that I am not being overcharged

I may be mistaken, but I seem to recall that smart meters don’t support Economy 7 and you’ll now be on a single-rate tarrif. This is certainly the situation I’m in. The Smart tarrif will support three-rate and is kind of similar to Economy 7 but that’s not been launched yet.