No assistance with Re-Installation of unit whatsoever

We have a Fleet Solution with Car Track and towards the end of May we sold one of the cars and didn't immediately buy a new one. We arranged the De-Installation of the Car Track Unit without a glitch. I have however, since the 29th of May been trying to get someone to contact em with regards to the re-installation into the new vehicle. I have sent through the documentation multiple times, I have logged calls on our user page and no feedback has been received whatsoever. I have called, been given email addresses to send the documentation to, been given more email addresses and nothing. This is unacceptable and I have no other option but to post on this platform in the hope of having someone attend to my qurey