Worst service ever

So two weeks ago before the long weekend of September I gave netstar a call to make an appointment to transfer tracker from my old car to the new car. I was told that they can't assist me during that time as they are having technical issues and this will last up to three days. ( I assumed that their services were affected during that period, meaning that my tracker was not active since they had technical issues). Moving forward, I then call in on the 27th September to schedule another appointment for Saturday, this was agreed. I then called in the same day to change the appointment to Friday, we agreed that the technician will come to my location at 8am the next day. Friday I was home waiting for the technician to arrive, it's now 8h30 the technician is not at my place, I call the call centre to find out the whereabouts of the technician and was told that the guy called in sick. Mind you I took a day off from work to have this issue resolved n no one bothered to call me and tell me that the technician is running late or something. I called again to ask for a cancellation department as the service I was getting was not on par and no one seemed to care about the other plans I had for the day. They wanted me to pay a cancellation fee even after I getting the worst service ever. They could not even transfer my call to the team leader or the manager I had to hold for more than 20 minutes until I decided to hang up. They called me around 8h50 am to tell me that they are sending a technician and he should be at my location by 9h30 to 10 o'clock. The technician only arrived at 10h30 , by then I had already left because I felt that Netstar doesn't care about their clients time. to make the situation worse I haven't even received a call from them since then. is this the kind of nonsense we should b accepting while we are paying?????