very irate client

So apparently Nedbank had issues with there internet banking over the weekend! All transactions and transfers done was duplicated! I call them this morning and noboday can tell me how long it will take for issue to be resolved and the person I spoke to is so insensitive and nonchalant as this is clearly just a job to them! So unacceptable! No re-assurance that I will be contacted or anything!!! Can someone please change my mind about Nedbank as I am very Irate at the moment and feel like moving banks again!!!