Poor customer service

I went to Castle Mansion on Friday at 6pm to visit my sister, I gave them my ID as a visitor, a tall, light in complexion security told me to call my sister, I told him he must use an intercom course I know there is one. He firstly refused then i told him that last time the security that he is working with did that, thats when he used tge intercom. When he was done he told me that when i come next time i must call my sister myself, 1 thing i cannot do is to go all the way from Secunda to visit someone not knowing that i'm coming. It's not the first time the same security being rude to me/people visiting my sister. I request that you as City Property ask him what did my sister do to him to have such bad attitude towards us, he must be taught costumer service, he must not come with his issues to us.. Please its a request the old man is very rude. Help us !!!