Capitec Bank don't attend to their customer complaints

Capitec Bank don't attend to their customer complaints. On the 31st December 2024 I made a cash send for myself using the app because I thought it is the best option to use. I went ahead to use one of their ATMs in Midrand boulders shopping centre, after punching in all the digits and pin using their ATMs all of a sudden it went 'out of service ' I than proceeded using another ATM and it gave me a message stating that the voucher cannot be redeemed than I went to pick n pay to collect my money but the cashier told me that the bank is rejecting my cash send voucher I ask the cashier why? Than she rep**** she doesn't know the reason. Immediately I opened the app, to my shock the voucher has been redeemed. I called the bank on the 2nd January 2025 till today the matter hasn't been resolved