Very poor service and lack of communication

On the 6th September 2021 I visited NTT Volkswagen Worcester to get a quotation for my right mirror which got damaged during a hit and run around Cape Town. I was assisted by a gentleman by the name of Jakes Botha (parts manager at the branch). He did an inspection on the damaged mirror and I got a quotation of R4609, 80 which I paid on the same day. An appointment was arranged for the 16th of September 2021 for repair. On the the day of the arranged appointment I got a shock of my life as I got surprise that the mirror was miss-assessed which resulted in me having to pay an additional amount of R4577, 00. Another appointment was scheduled for 21st of September 2021. On the 21st of September 2021 I arrived at the Dealership around 9am and waited patiently for the service to be rendered as all the amounts were paid up already. Only around 3pm the receptionist (Cindy) informed me that they have the wrong part mirror and Jakes Botha (parts manager) is on his way from Cape Town. Upon his arrival around 5pm there was no communication or even an explanation from him for the inconvenience mind you all the trips I've been driving back and forth from Cape Town to Worcester