Nedbank won't let me draw my money

From the 31st of May I have been unable to withdraw money at all from my account. It gives me an error saying that I have exceeded my daily withdrawal limit yet my money is untouched and I have made no withdrawals at all. This is extremely frustrating as I have no access to any money at all. Tried to contact the bank but they are the most unhelpful bunch of people ever. Is there any one that can assist me urgently please. I am desperate and now seriously considering finding a bank that isn't up to ****.