Had two smart meters installed on Wednesday 1st February. They supplied a bluetooth based home display but it's too far from the meter to the nearest point I can find so it doesn't work. (It's a flat on the top floor [Ground/1st/2nd] of an Edwardian conversion so nice thick walls!).
Anyway, I tried the App which would be better than nothing. It's now Saturday and the app is saying they're having problems but it will all be fine "soon". I looked at (and photographed) both meters and the leccy one says 00000 and the gas one is blank.
How long does it typically take for smart meters to come online and start reporting?