Caller: Black mambha

I got message from this no which i cant understand when i dial this no i cant understand what they talking about and got another message about cost of debtal treatnent without knowin name i was searching dentist but i didnt knew who was black mambha was displaying under message so tried to see reverse look up and find this no was complaind by someone else also.

Caller: They said it was Energy Smart looking for Hareth

Unsolicited phone call asking for my name and whether my number was a business or residential number. I did not give it to them. They were looking for Hareth or Haresh... They said they were from Energy Smart... and when i said i would call Energy Smart to see if this was a legit call, i asked for the person's name, they said Jamie, but wouldn't give me their full name. WHen I called Energy Smart on 1300 077 015, that number was no longer taking calls. I tried to call tyhe o488 number that called but it was not connected.