Savings account problem

I had a savings *** with Nedbank and in November I got a call from one of their consultants advising me to open a Migoals account. That was done and I switched my salary. Since December I've been using migoals account. On the 17th of Dec I spoke to one of their consultants about closing my savings account and she told me that I need to go to the branch to have that account closed as they can't do it on their side. On the 30th of December I went to Nedbank Parkstation and I was told that the person who closes the accounts is on leave and will be back on the 9th of January. Now I am getting SMSs saying my savings account is overdrawn and today I called their call center and I am told I need to pay R40.36 service fees before the account can be closed. Why is that now my problem? Does your system not show you that this account is now not in use? Please sort that out and close that account. Also I was told that after my salary is deposited to migoals, I will get R500, when am I going to get it? I am very disappointed with Nedbank I thought it's a nice bank and I won't have challenges with it but now I thinking otherwise. ***