verbal abuse

Hi, I work as a bar attendant in Australia N.S.W. A couple of days ago I was totally demeanored as a person and verbally abused by a customer, in front of 20-25 witnesses including my manager, over a small misunderstanding.It was when I calmly tried to resolve the misunderstanding, the person abused me at the top of her voice calling me dumb, slow,stupid and overweight.It was then that my manager stepped in and told her, what she said was completely out of line and she had no right or no cause to react so viciously towards me or any human being for that matter.Not only was I entirely humilliated, I also felt powerless to defend myself as a person in fear of loosing my job.The misunderstanding was over Keno, she won $5 and wanted to replay 44 numbers on top of the $5, however she did not stipulate this and only asked for 44 numbers when I only put the 44 numbers on she started with the abuse. what can be done about this? and what are my rights? - Is this your question? Add additional information