Didn't pitch to install the device

Hi,<br> <br> Arranged for a Tracker unit to be fitted to my wife's car. Guys came last week Thursday, and then said the place was too busy for them to do the installation. Made arrangements to come on Saturday.<br> <br> Needless to say, no-one pitched, and when I called the call center, there was magically no record of the Saturday installation.<br> <br> If you guys are this off-the-mark before I've started paying you, I really don't want to experience your post-sales service. <br> <br> As such, I requested the installation be cancelled completely, and will be applying with another (more efficient) tracking company.