I called back the number (03) 8820 8575 and the person I spoke with said the company is Deal Checker

Called me twice today trying to sell me electricity deal saying I should of recived a letter,im in perth there is only ever been one provider scam,scam,scam

Person did not know my name and did not really introduce himself. Was talking about electricity deals. Unsolicited and unprofessional call on a Saturday no less. Can only be malicious or dubious.