Nedbank **********

On 17/05/2021 I bought R100 prepaid electric via Nedbank app. I never received the voucher. Later I had to buy another R100 on the same day of which I received the voucher and punched in correctly. I queried the first buy via customer care over phone. Query was logged and had to wait 3 days turnaround. I kept checking to see if a refund reflected on my statement. Today 21/05 I received an sms saying matter was resolved. I again checked my statement to see if R100 was refunded. It wasn't. It now show that I made 3 purchases of R100 on 17/05 which was incorrect. I phoned customercare again and now it shows that I only made 1 purchase on 17/05 whereas on 17/05 it showed correctly that 2 purchase went of and today it showed incorrect 3 purchases for the 17/05. With the consult on the line today it showed only one purchase for 17/05. This is ********** behavior from Nedbank and IM FAR FROM MAD IN MY HEAD. My only mistake was not to request a statement on 17/05 via the app then I could have proven them wrong. How many people are conned this way where the bank can simply alter a statement and make you a ****?