Nedbank wont provide account information

I have a loan account with nedbank, and need to make manual eft payments into my account to pay the loan, I have logged almost close to 7 requests with them to provide me with this info since June 2015. No response yet and my account is falling arrears and its also affecting my credit records. This is blatant neglegence from their end not to respond and now I am paying for it. I cant phone from my office as it is not permitted and went into the branch twice and each time I was told to contact nedbank either from the website or phone. I have logged numerous queries on their website and sent emails but no one comes back to me.