Paying for no service and having to deal with rude customer support!!!!

Spoke to Amy in Sales on Monday 23rd of June 2025 @ 09;04 informing her that I would be trading in my car and would need either my unit that is in the car i would be trading in to be fitted into the new car or get a new unit fitted. We decided that a new unit would be fitted at the dealership and the old unit would be cancelled. I gave her the contact details of the salesperson in order for them to ensure the fitment team makes an appointment with the dealership based on date and time that suits both teams. Amy didn't object and took the details of the salesperson. Fast forward two days later i get a call from a very Rude lady informing me that the fitment will be moved, I informed her that the vehicle isn't with me and that the dealership had to be contacted - she wasn't having it. Tried to get hold of Amy, NO LUCK. Spoke to another "helpful" person Thando....NO LUCK. So Dear Tracker please let me know: 1. why was my device cancelled on Monday when i was still driving my old car and still paying for that unit? What if someone *****s my car without the unit being active???? why is my mails being deleted without being read???? why is your team promising me on thing and then the other side of your rude team is not sticking to promises made?? I have now waited more than 1 hour of Amy to phone me back.....so my money is good but when it comes to service it is each person for them self?????