I get multiple calls/day from this # every few months in waves. I never answer & no message is ever left. Thanks to annonymous for the detailed info on the company. That is the best posting ever!
I reverse look up who these numbers belong to. If it's one of those energy suppliers, I call back, make up a company name,and tell whoever answers I'm an energy supplier. They call so much I make a game out of it- they don't know what to say- usually ends the calls to my number, at least from that particular bunch.