Good Until Now...

My experiance with Netstar has been good for the last few years, but this week has been absolutely terrible. I've needed to cancel one of my trackers and then move another from one vehicle to the next. But their phones hardly ever get answered and when someone answers, they send me back to the switchboard to wait until the line drops. I send an email to their customer service on Monday, get a reply on Tuesday, I explain what I need, and then no response since. I sent two emails after that which both are just ignored. What's going to happen if one of my cars get ******? Do i have to wait three days for you to start looking for it?