call centre not getting back to me

I have a american express credit card with nedbank, i deposited 1000 rand on 23/10/2015 the money didnt reflect on my account, on 27/10/2015 i wanted to deposit the balance that i owe on the account the machine took my card and stated i must go to my branch, i was told my account was given over to the legal department, which the branch can't even help me neither tell me what is going on, and the person at clearwater doesn't really understand her job and can't answer my questions properly, today 02/11/2015, i phoned the number which was given to me and still only the answer machine where i must leave a message, this is really not good service at all, i only have an half an hour lunch and nobody can help me in this time, another thing from nedbank is they will give you over to the legal department without giving you notice that this is going to happen.