Edgards Maponya, employees do not know their work and the attitude

I paid up the account on Saturday, they told me I have points which is R69, and I should close the account after 24hours and go to the store. I went to Edgards Maponya bought shoes and I was told to pay the difference which I did and the lady who assisted me realized that they changed me more than the balance on Saturday, she said I should go to customer service, the lady who assisted reversed everything and basically showed me the middle finger and said well after the reversal you have lost R69 and the R30 you will also lose. I paid cash and I ask her why I cannot get my money back? Edgars employees are not helpful at all I am going to close the account but I want my money back. I should not be the one teaching them how to do their work. I want my money back