Bad customer service

On the 17 May 2021 I bought food from Nandos Jubilee mall which was R166 what happened is that there cashier used a speedpoint that was faulty just after I swiped and received a bank notification that the money was out they told me the transaction did not go through as their tillpoint did not open and the said the money will reverse which it did and I had to swipe again to pay for the food, after a week I went to nandos again to tell them that the money did not reverse and I had my statement with me that showed the transaction and I was told that according to their records the money was hanging and I should go to Capitec for them to reverse it I went to capitec only to be told that the money was out and they can't reverse it to cut the long story short I have been running like a headless chicken to nandos to assist but they are telling different stories when I call them and what annoys me more is that when ever I call they will tell me that they will come back to me but they never do..