Service Half-Job and No Show

Purchased our aircon unit from AC direct 3 years ago and had no issue with its services up until the last two recent appointments. The group of men before last were incredibly professional, friendly and thorough - our unit was however left with a rattling sound that we have ignored but mentioned now for our current service appointment. The last pair of men who came to service the aircon unit checked the gas (allegedly) and cleaned the inside filter and flaps (asking for sunlight and cloths because they didn’t have anything with them apparently), leaving the outside fan filthy, the rattling noise was ignored (“just don’t put it on full blast”) and I repeatedly asked “did you check everything?” To be met with “ya ya, everything is fine”. The aircon doesn’t even cool the room down at 17, full blast and on swing. You feel it directly below it if you aim it correctly though. They were meant to come back today to finish the service and they have chosen not to pitch with no communication or reason as to why. We were told 1-2pm they would be here and it is now 3pm. I think your experience with AC Direct will depend on the luck of the draw you get with the service guys. Before this, I truly had nothing bad to say but I’ve spent my afternoon waiting for people who just couldn’t be bothered to do a full job or communicate.