Bad bad service from these guys

First made contact with them on the 6th March, where I was told the installation team will be contacting me within 2 days. A whole week went by, then I called them because I need the tracker fitted to my vehicle. A person answered and said they will call back that same day. Again NOTHING!! I called again the next day and couldn't even get through to them .Phone just playing a recorded voice for nearly 5mins. Never heard from them again. And they want me to sign a 3years contract with them...