Bad service

I have had a problem with my GPS locator on my tracker since last week, called Cartrack and they booked a technician. Every time when the technician is supposed to come, they can't get hold of him. Yesterday the technician was supposed to come to my workplace to fix the GPS locator and he never came, I called to find out what was the problem and was told there is no technician available. This morning I was called and we made arrangements for the technician to come at 3pm, now at at 3pm I received another call and they told me that the technician will come tomorrow. They forever having issues with technicians and now I am frustrated. I don't think I can recommend cartrack to anyone.