Platinium Credit Card exceeding contractual amount

To who it may concern:<br> The limit to my credit card is R10 000 which was agreed with by the bank. 3 months ago without any notification my full salary was debited by Nedbank to cater for a suspicious overdrawn balance on my credit card. When i called the contact centre to enquire about this transaction, i was rudely told to pay this amount without any investigation as to why the credit card was overdrawn. My concern is that this could be a ********** transaction which the bank refused to investigate and the bank is in direct contravention of their agreement as the credit card should of been blocked at R10 000 and not R14000. I am currently paying an agreed amount to resolve the balance being overdrawn but refuse to accept that this is my error. Nedbank needs to provide me with more details as to what transactions was done to make up this R4000 that cause my account to be overdrawn and reimburse my account. I have this account for more than 10 years and never experienced this type of problem as when my limit was reached, the account was blocked. As a loyal client, my client experience with Nedbank has been tarnished. I await feedback to this problem. Regards Lenore Peters