my personal cheque account restricted /closed

Hello last week my account was overdrawn R1500.which i paid the amount.i was sent threaten sms rectifying funds or account wil be closed.i payed an account in order.then last night account sayin restricted i am in shock.i called contact centre.no help sayin go to branch.now what the hell is happening? I got debt orders goin of an salary comin in.?i was not noified.this is embarrassing. I am not happy with service <br> <br> i want my account to be open.this is not fair.i hold busines credit cards an 5 credit cards with nedbank all my accounts up to date