Lazy and unprofessional

So I applied for a fiber installation and everything was arranged... The guys was here they checked out the job told me that they just going to do a other job and I just had to move a few things around which I did and when I phoned the guys who was supposed to do the job to let them know I am ready they said they don't know if they coming back this way after they let me prepare the area it didn't even take me 5mins to accommodate them I even took a day off from work so I can be here to assist them.... They hung up on me and didn't answer the call again now I don't have any way of contacting them so now I'm spending unnecessary money trying to get in contact with them... What I am most upset with is the people doing there installation they are plain lazy and unprofessional how can they allow people like that to work for them don't they care about the service they provide or how this impact there company.... Really poor service