Netstar exceptionally bad service

absolutley shocking service from Netstar ! the only way ive managed to get to speak to someone is on thheir emergency line . Ive sent countless emails with not one response oor phone call to assist with cncellation / new unit. Eventually got hold of a lady who promised to help but this has also gone nowhere and cant get her to respond . My vehicle is now uninsured for theft and hijacking as the tracker issue is unresolved to the incompetence and total lack of service . POOR SHOW NETSTAR!