nedbank worst service ever

So somebody to close to R3000-00 rand of my account in two different transactions - phone the bank to reverse it they can't - I must complete a ***** form - done this in the first week of April - I mail them now because I haven't heard anything from them and it's reaching the 45 day mark if not pass that already - as per them it takes so long to investigate - now I get told I must re-send the form - what kind of micky mouse bank is Nedbank! - always thought my bank is the best but now I need maybe move -