Poor service

I recently had a tracker installed on my third vehicle, the appointment scheduled for 9:15am on the 15 October 2015. The technician arrived at 8:10am without the curtosy call saying he is going to be early. This was a huge inconvenience as i had to leave work to rush home despite arranging a set time when someone could be available. I spoke to one of the supervisors about my complaint who advised that i will not be billed for my third vehicle only to discover that i was billed in any case. Nearly 2 weeks later and still no response from tracker regarding the refund. Numerous calls made and coincidently no notes are visible from the last call i made and more frustratingly the more I seem to call in the more nobody has an answer for me. From the day i joined I was completely happy with the service which is why i have 3 vehicles covered by you however this is slowly changing my mind. I want this resolved by Friday 30 October 2015.<br> <br> Mr. Hartnick