Discovery Insure...just keeps taking

On cancellation of my Insure plan I was advised that one of our vehicles had a tracker that would need to be retrieved and ultimately I would be held financially liable should it not be returned. An appointment was immediately made for 26 April 2022 at 15h00. The assigned technician with phone number: 064 *** ***X phoned numerous times during that day wanting to come earlier, I did however mention on the first call that it was not possible as my husband had a number of work commitments and especially arranged to be at home at 15h00. The technician then phoned at 15:01 unable to honour the appointment due to personal reasons and wanted to reschedule. We then arranged for Thursday, 28 April 2022 at 8am. When he did not arrive or make contact to cancel, I phoned to find out what the arrangements were, but to no avail as his phoned was turned off. On making contact with Discovery again, I get an email with new dates, times etc and a surprising sentence stating should I not be able to make the appointment I will charged a R150! Excuse me? So how much do you owe me Discovery Insure for not honouring appointments....