Disgusted by the service

I am so distrusted by the service I received at Edgar's Maponya Mall, I went to return shoes and I was told by Amanda Nopapaza that I won't get my money because I do not have the cash card that was used during the transaction. I was told that I will be given a voucher, I asked for the manager, Nomthandazo Xaba came and she told me she is store admin manager, she came with attitude and told I won't get the money without the cash card, I then asked her what can she do as the manager in charge seeing that I don't have the card. She then told me there is nothing I can do, she then left me there and was busy with her own things, the cashiers left me there and did their own things and I was left standi6for 20 mins. She then later came back and did the refund without saying anything to me. I asked her what is happening, she then, with attitude told me she was giving me what I want, I asked her why is she talking to me and arguing with me like that, she then told me to sign and leave because they need to help other customers. I am so disgusted by the appauling service I got, especially from a manager.