waiting for an electrician

I called on Tuesday 21 April to request an electrician to come and check the ripple switch that is affecting my gyser I haven't had hot water since Sunday the 19th April due to this switch. I was given the reference number at the call centre: ***. I called twice again on the 22 April and was promised an electrician was going to be dispatched. I'm still waiting. I'm being treated like I don't pay my rates. I need somebody to held accountable for this incompetence I've been shown