Solar scammers, identify with a fake Co name & ask you if you have solar, if you say no they will then attempt to steal your solar STCs, so always answer "I do" and they will go away(note do not say the word "yes" to these scum, they can record the word and use it to apply for various discounts and/or order things in your name for themselves.
Also if you try to ring the number back it does not ring it goes to message stating "number you have dialled is disconnected" (which means they have highjacked the number and are illegally using it, good luck all 27/8/19

Number not known when call back....