Disturbing Service

A week ago i bought Liquor in Kenilworth centre Pick n Pay and I bought some Liqour at Shoprite/Checkers same days,I did not use all the Liquor that was bought but I lost my slips,but because i knew the dates and times When i explained by shoprite liquor Manager he went to the system and checked,and they printed m the slip and refund was done!!But today when I went to pick n Pay liquor store in Kenilworth,Ashwin who was helping m told m blantly that No cnt Do without a slip-so i asked him to call Marawaan/Fezeka or any manager to help look in the system as I was giving them the details-so he went to call a manager with the stinking attitude,so manager came i think Sonita-she did not even greet she told me straight that shes is not Maraawan or Fezeka!!!that made m very angry cuz she did not even greet to come and tell me shes not Marawaan or Fezeka-We had a argument about her just coming to m and tell m shes not whoever-We were outside liquor by the cetre chairs as I was waiting outside everyone stood and looked at us!!I am also going to ask the centre management for the footage of the scene!!I dnt know is this the kind of service we getting in our days?I am working for Retail BUT what Sonita did is unacceptable!!and she went on by saying I can call whoever name that popped out wad Russell as she dnt give a ****!!!Realllllyyyyy!! And I am not going to let this go-that women was very Rude