Bad customer service

My debit order goes off every month on the 25th and on the 25th of April 2024 it went off but few days later the money reflected back on my account, I called MTN immediately and they said there’s nothing wrong on their side.. I called again yesterday and I spoke to Zanele who was rude and sounded to be too busy to even listen to my query then I dropped the call . Today I called in again I speak to Nonelwa Bebula she doesn’t have customer service skills, she never given me a time to raise my query all she was doing was telling me that my account is outstanding without listening to what am saying

Can one of the managers call me back..because clearly your customer service is not trained properly on to handle customers or they need proper training on telephone etiquette..they need to learn to listen and speak after not to interrupt a customer while talking without understanding