Bad customer Service

I called TV Doctor to schedule my dstv installation on the morning of 02/05/2015 at around 08:30. I was told that the installation will happen the same day and the installers will call me when they are on their way. Seeing that it is saturday, i called again around 11:00 to check if they are still coming and by what estimated time will they be at my house. I was told that they will be at my house in about an hour and they will call. I waited and i am still waiting as i write this complaint. The time is 15:39. The office is closed for the weekend and the installers have not yet called. I am not sure if they are still coming or not.<br> <br> To me this is an unacceptable customer service delivery. If they are running late or they cannot come, they should call the client instead of just keeping quiet.