Bad slow service

On the 28th October I sent my cousin money to her nedbank account to buy me R50 Telkom airtime. Little did I know that day the banks and Telkom had a problem. So the R50 was deducted but airtime didn’t reflect. My cousin tried contacting nedbank and they said the money will reflect in 5-10 days. We waited and nothing happened. She called again and they said they have escalated the matter and this is the sms she received only last week “ Dear Client , *** , please note that your query have been received and we are still investigating, Regards Nedbank“. Nedbank reversed the money only this morning. It’s basically A WHOLE MONTH to reverse and “investigate” something that was done wrong on their side. So so appalled by the service and I was even thinking of reopening my account with them but no not anymore!