Did not open my accounts properly

In 2014 I opened a just-save account with Lynn at Brooklyn branch and was informed that this was a yearly intrest account. Besides the numerous times that I had to go back because she opened the wrong accounts. I went to Menlyn branch to go and query why the intrest that was due on my just save account had not been paid and after half a day I was informed that she did not activate the account. I have now gone and closed that account and opened another one but would just like to state how unhappy I am that I will not be paid the money I am due as a result of a mistake someone made on nedbank's side I really don't think it is at all fair.