Well this is daft. I’m switching to bulb, and already have a smart meter, second generation, so should handle switching providers.
However, bulb help have just confirmed “We do still ask for an opening reading. It isn’t an option in your Bulb account because you have a smart meter” so you do need to manually read the meter and email them.
Sort it out, bulb! Dont ask customers to enter readings but have no option to do so!!