No one able to assist with problem

I Need to change the default account on my mobile app, I have both a Savvy and a credit card. After some account admin done last year, the Credit Card Account has become the default account on the system, which should be the Savvy, this leads to me periodically making payments on my credit card rather than my primary account.<br> <br> I call the Nedbank Call Centre and after explaining my request, they transfer me to mobile app support. Mobile app support tell me it's an Internet banking issue and transfer me to Internet banking. Internet banking tell me that it is an account matter and advise I phone the branch.<br> <br> I phone the branch and they tell me they can't do anything I must call the call centre. I'm just going around in circles with no one wanting to help me with something that can't be that hard to do.