Pathetic customer service

As existing cartrack client, required a new unit to be installed on another car. Scheduling dept made the appt in 2 weeks time 15 April and scheduling SMS received. On 15 April waited and at 15.20 received the SMS that tech would be by 16.10. At 16.30 nothing than I called scheduling and was informed that tech was 2 hours away and wouldn't make it. Rescheduling would be in another 10 days. I was frustrated and asked that they call me back. Scheduling called on Thursday 17 April and was sorry and the new scheduling day was Friday at 8am on 18 April...are you sure as it's Good Friday...yes. Scheduling SMS received. Today 18 April 8.37am nothing....calling cartrack call centre and some depts were closed. Again incompetence and false promises. Very disappointed at the pathetic customer service. Cartrack you are welcome to listen to the recorded calls.