Frustrated with Nedbank!!

I have 2 accounts with Nedbank. For the longest time, both the App and my local branch could not pick up the one account. After hours spent in the branch, they said the account was on an incorrect ID, but they could not fix the error?! Now, after i have a new device, the App is not picking up either account and the Call Centre is only picking up the account on the "incorrect" ID. Seriously?! Can no-one in Nedbank correct their own errors?!