Calling from Super Charged Solar. Spam

This above NUMBER isn't stop calling me, I have no idea where it is from and what it is for? Never leave a message for me. is this a tel marketing .. so annoying ..

Phoned today wanting to talk to manager, said would try back later.

Yet another company flogging solar panels. At least he was polite enough when I told him we weren't interested.....

After i announced our business they hung up on me. Tried to call back but it did not ring but a recorded message said "goodbye". Definitely a call centre though as when i was talking i heard a lot of voices in the background.