No Answer No response to email

I lodged to queries using the email address [Email Removed] because no one answers the call center number. I tried several times to no avail.<br> <br> I am now frustrated as 1) I need to cancel a unit that is in a car that I sold last week and 2) I have been charged for a unit for two years now for a vehicle that was sold and replaced with a new car and unit - at the time I had confirmation from the Netstar salesperson that the old unit will be cancelled.<br> <br> NETSTAR PLEASE HELP AS YOU ABOUT TO LOOSE ANOTHER CUSTOMER