Bad Service

I Had An Aircon Installed Roughly A Year Ago. Three Months Back They Came To Do A First Service. Three Months Later My Unit Is Not Functioning The Way It Should. I Have Called The Company Who Installed It By The Name Of Aircon Premier, Who Repeatedly Informed Me On The Three Occasions I Called And Told Me That The Contractor That They Have Working For Them Has My Job Card. I Have Then Since Last Week Tried To Get Hold Of The Contractor To Enquirer As To When I Can Expect Him To Come Rectify The Problem. Have Called On Numerous Occasions And Have Not Heard A Word. He Has Taken It Upon Himself To Blatantly Ignore My Calls. I Then Sent A WhatsApp Message To Him And Clearly Once Again No Word. How Does A Company Like That Have One Contractor Working For Them?? When Payment Is Needed Then They Hound You, When It Comes To Service Well Need I Say More.................!!!!! Don’t Recommend Them At All!!!!!!!!!