Nestar beyond poor service

On the 29th of march, I was in an unfortunate situation where I needed to be rescued and Netstar whom I pay to help me in case of emergency was nowhere to be found. Fortunately for me I was rescued by complete strangers who were driving by. I checked the useless device on the app and realised it is not accurate with location, I called the useless call centre and it’s been over a week now, no one has bothered to fix the useless device. And when one wants to terminate the useless contract they will be talking about early termination fees. Why should I continue using this useless company?