Swift air poor service

They was suppose to install a new Aircon on Thursday 15/10/2015. I arrange it n week prior of installation and Callie the owner agree to the date and time. They phone me on the day and inform me that they can't make it but can they do it tomorrow that was fine with me. They arrive late again an the staff dump the Air con in my living area and left it without install it. This is due to that they are not happy to install it where I wants it.