Bad service- Donna Claire Alberton

On Saturday 15th I bought items at Donna Claire Alberton (promo was buy 3 and get the cheapest item free) unfortunately 1of the items I purchased was small I decided to go exchange it the Sunday because it was a sale item and I was scared that it will get sold out, at the same time I decided to buy more promotional items. When I got to the till I was assisted by Gugu who had a very arrogant attitude at first she told me I can't get the exchanged item for the same price I bought the previous one unless I bring back the other two items that I bought with the promo so they can return all items and ring it up as a new sale. Luckily the lady who overrides transactions assisted and agreed to give me the item as per the promo. Gugu than got irritated at my son and couldn't wait to tell him not to play with one of the things at the till which I admit he was wrong but her way of saying it to him. By now I was getting really angry. I had to sign for the exchange and immediately I grabbed the first pen that caught my eye she told me that's her pen and for me to please use the other pen and immediately took out the sanitizer to sanitize the pen I touched . She refused to take my store card and swipe my transaction and asked me to keep the card in my hand and swipe it myself. I honestly became so upset and felt like I was being victomised. Yes I know we following safety precautions due to covid19 but I haven't experienced such service at any of your other tfg stores. If I knew I carried so much germs I would not have entered your store at all with my child. If safety is such a big concern to the store please let someone stand at the door and sanitize each customer and also take their temperature. At the same time please put perspex screens at your tills and notify us to bring our own pens so we don't feel so violated when shopping at your store. My overall experience after the encounter with Gugu will not let me buy at donna ever again. And I am eagerly going to return all items bought due to this.