Terrible service

I tried to purchase electricity on the nedbank app on the 23rd of November and to my surprise, the amount was taken off my account yet no voucher was issued. Reported this to Nedbank the same day and was given a reference number yet todate have not gotten any feedback. When consulting with the service consultants on the app - the connection always gets disrupted and guess what???? you start all over again. Not even a call or an sms to update you on the status of your query. Nedbank doesnt even to seem to care to get your problem solved.