Meters with displays? I remember them!
Swapping out the existing gas meter at my mum's house seems to have become something of a saga. The current device, not the first one to occupy the small cupboard by the front wall, lost its display about three years ago, its "10 year" battery having become exhausted.
There have now been over 20 abortive visits by various engineers. It seems that the neat 1990s model of meter has been replaced in the manufacturer's catalogue by one double the volume. Whereas in electronics, new kit is smaller and uses less power to do the same job as old kit, for gas the opposite is true.
The corresponding "smart" meter is bigger still - they say they only have one model, which presumably has to be able to cope with the gas consumption of a large factory rather than just a pensioner's bungalow.
The obvious solution would be to replace the meter with another of the same model fitted with a new battery, but it seems they carefully destroyed every single one.
Naturally, the supplier has been "estimating" the consumption, and they are really good at that, aren't they?