Disgusted service of casual

On Saturday morning myself and my boyfriend went to shop at Ackermans Ceres. When we came into the store my friends ex girlfriend that casual in Ackermans and was on duty saw us. She then came to me and shouted and screamed on me for everyone in the store to hear. She called me a **** for dating her ex. I myself is a very private person and feel disgusted in the way a staff member insulted me. I didn't come to her I came for the shopping experience, this is uncalled for. She threw the hanger and stuff around like a maniac. I was so shocked that the Manager on duty did nothing. She just stand and watched how.she perfom I have witnesses that will be making statements at the police station. Because I will be making a case against her for insulting me in public and humiliated me. Previously a similar situation happened in that store with her and I just left it but now I had enough. The manager called me on Monday to have a sit down and discussed this matter, after almost 2 days she wants to apologise but this will not be happening and I feel that her manager needs to deal with this asap. Please call me on my cellphone so that this matter can be resolved.