Someone came to read meter

Hi, someone came to read our meter today but my understanding was this wasnt necessary as I have a smart meter and regularly supply readings. I’m wondering was the person legit?

Bulb don’t send the meter readers, its a separate firm - you should check their ID when they turn up.
I can always tell mine are legit because they know where the meter is (it’s in a very odd place).

Apparently smart reader still do need to be checked physically by meter readers as a fraud prevention measure.