cashier at woolworths, baywest needs training!

I am disgusted by the customer service I have received from Siphosihle on 13/02/2022 at Baywest mall, Port Elizabeth . She needs to go for training as she has no way of speaking to a paying customer! Wow! She did not ring up the items I wanted to purchase. I was still in the store when I realized so I went back and asked to purchase the 5 pack of tees which were hanging behind the counter. she wasn't there at the time so one of the other cashiers went to call her and when she got there with her unfriendly approach, I explained that I want to purchase the items, she said 'No, I WILL NOT GIVE IT TO YOU , you must wait until it goes back to the floor'. I asked why. she said it's cos I returned it, but I was actually overcharged on 12/02/2022 on more than 4 items, so I wanted to pay the amount which was being advertised. I then took other items as well and she claims that I said I don't want it. why on earth will I come to the till bring items I don't want!!! I am in disbelief. Please send her for training ASAP! I always receive friendly service and I always feel welcome but after yesterday, I was just shocked at the way she raised her voice at me! I previously worked in retail too and I know what is expected!