Utterly Disappointed and still no closer to get my unit installed

Utterly disappointed with the service received ( still ongoing as I'm writing this report). Purchased a new vehicle so needed to have unit de-installed in current vehicle and installed in new vehicle. Got the form and sent it in on Monday 18th May 2026, got response that the form will be sent to relevant department. Waited and waited, on Friday 22nd may I called to find out what is happening. They had no record of the form or any booking. Did the form again over the phone and they got an availability for de-installation Friday later the afternoon. Installation was booked for Saturday 23rd May @11H00. De-installation happened ( also had its issues but that’s minor to my current struggle). Saturday I waited for technician who should have been there @11 , so at 13H00 I called to follow up and they said the technician was not at work, the said they will send an email to technical department so they need to assign different technician still for that day. Waited till 15H00 still no communication, no feedback- I called again. They said there was no one assigned to my installation, and the technical department closes at 13H00. So again all they can do is send a email to technical department who will contact me. Sunday I receive a call and a booking is made for Tuesday @08H00. Tuesday I wait, no communication so @10 I call them, they try calling tech , cant get hold of him - says all they can do is send an email and hope he shows up. I wait further till 11H30 , call again to try get feedback - all they can do is try call the assigned tech - both his phones voicemail. AGAIN all they can do is send an email to the tech department as they cant call them and there is no other department I can be transferred to try and resolve this issue. So currently as im writing this email I am still waiting for any feedback or update , which from the last few days im very much doubting I will get. I have asked that the senior ( or manager) call me as the customers agent helping me could not transfer me to a senior as they on lunch , so will see if they contact me after their lunch. So after spending my whole Saturday waiting , and so far most of today I still have zero clue as to when or if this will happen.