Gossipers no customer confidentiality

On the 20th of August 2024 I went to Kia in Springs I wanted to trade in my car for a bigger one met a lady by the name of Thandeka who is assisting me . Whilst assisting me I was told they need to assess the car to check the value so this other guy whom I don’t know his name took the car and went to go assess it when he came back he asked me where did I buy my car and who assisted me I told him Hyundai springs and Boity assisted me. After an hour I get a text from Boity saying I should have came to her for advice and that what m trying to do won’t pass. Than now m confused because Thandeka is still assisting me is she doing this just to pass time than later on will tell me that it is failing and what happened to customer confidentiality why did the guy have to go tell Boity my business like which kindergarden is Kia running. I am really disappointed because now it means our information is just being shared around for what and why I don’t know. That time Thandeka has not responded she told me she is still busy but Boity already told me the outcome