Cartrack can not commit to their customers

I'm a new customer to Cartrack and madr a appointment to install my tracking unit on the 7th of December 2019 at 12 O clock, at 14:10 the same day no Technician had yet arrived I then called Their call center only to end up speaking to a consultant whom could not get hold of the technician and ended up putting down the call without given me a answer as to when my unit will be installed, if this is how long Cartrack takes to install their unites, I don't even want to know how long it will take them to recover my ****** vehicle this is absolutely unacceptable.