Paying for Discovery Insure mistakes

Upon newly insuring a vehicle with Discovery Insure I was advised to contact Discovery Insure in order to arrange for a tracker to be fitted to the insured vehicle (Lexus RX 450h). After contacting Discovery Insure to make an appointment for fitting of the tracking device I received an email notification on the 8th July confirming a fitment date of 22 July and noticed that the address provided was incorrect. I returned the confirmation mail from *** within minutes stating that the address was incorrect and again on the 17th of July. In addition I sent 4 SMSs to DQ-Track to notify them of the incorrect address. On the day of the appointment the address was still incorrect and Discovery Insure cancelled the appointment and charged me a penalty fee of R150 for cancellation. Is this the way they have changed everything? By charging the client for their mistakes?