Regina Mabula gave me a very bad service

I was assisted by Regina Mabula at pick n pay mahube, she gave me a very bad service. there was a confusion about Sassa payments today and when it was my turn to pay Regina stood up from her chair and started shouting at me telling me that I must go and stand at the next counter bcos she is helping Sassa people only and I told her unless I am at the wrong place, I told her I am in pick n pay and not at Sassa and I will be helped. then there was another guy who was not wearing his uniform, he wore an Uzzi huddie he started calling me names. these two people caused a stare and made my shopping very unpleasant. I was buying few things, wanted to top up my electricity, pay dstv and withdraw some funds. I was only allowed to buy the items and top up electricity and Regina told me I must go and join the que for the other things bcos she doesn't have money for me, she has money only for Sassa people. she was shouting and people were looking, I felt so embarrassed.