Highly disappointed bad services

On the 22.08.2019 I went to Woolworths at Kerk Street Johannesburg to exchange the morning slippers this was the second time for me to exchange. I have the proof of purchase with me but than we I got to the till I was requested to have the original slip because I wanted the refund, I told them I was only give one slip the last time I came to exchange they said they can give me a gift card which is I was not happy about I asked her why are they giving a gift card because I bought the this cash, the lady who was assisting me called another lady whom I am not sure whether it's superviser or the colleague to tell me what they can give me the gift card than she called the manager who is Mr Mthethwa spoke to him but seem not to understand I requested to watch the CCTV footage because it could be that she has given it to me the last time and I have misplaced it he went there for like 15 to 20 mins came back and told me that the lady who was assisting give me the receipt back he refused to let me see the CCTV footage still told me that he can only give me the gift card not cash. This was around about pass 6 in the evening. A gentle man came along by the name of Thabang or Thabiso who actually explained to me the process and regulations of the company. What made me sick and angry was that Mr Mthethwa just walked away without saying anything or informing us that he is leaving or to say something he didn't even have patient talking to us. I mean as a manager of the store you need to finish the issue then you can go for him to leave us like that was coldful and rude. He has disrespected