@rapidegg My point was that I don't think there are two different types of meter being installed. I have a new smart meter installed by Bulb and I'm on the single-rate tariff, as I always have been. If I want to switch to a multi-rate tariff (when Bulb are set up to do so), I'm not expecting to have to change meter and I'm not expecting to have to arrange an engineer visit either.
As far as I know, remote configuration should be possible via your wi-fi connection. @“Oisin at Bulb” can you please confirm what the situation is here?
@norman7115 I believe that you are correct about there only being one meter. I should have said that the conversation between the Siemens engineer and Bulb, (which was on loudspeaker), involved the Bulb employee asking whether the meter was “dual tariff”, to which he replied YES, and was then advised to proceed. I was also advised by the engineer that Bulb should be able to do something configuration via wi-fi but nobody during my numerous calls has suggested this so maybe this is not true.