Rude Consultant

I have a personal Loan with Old Mutual that I took out at Old Mutual in Heidelberg Mall. so due to unforeseen circumstances I missed 2 payments and I called the head office and made arrangements to pay R200 for a period of 3 months thereafter I will go back to my normal installment of R365, however the gentleman I spoke to forgot to update my account number and the debit order did not go through, then this rude consultant who doesn't know anything about her job called me and she was very rude and she didn't even know what she was talking about. I mean how can you work for an FSP and not know anything about NCR Act. she refused to listen to what I was trying to explain to her regarding the arrangement that I have already made, she kept on saying i must pay R565 immediately because I signed a contract and now I am coming with stories when I took the money I didnt tell them the stories that I am telling her now , the nerve of that woman, she then hung up on me. another lady from Old mutual in Cape town called me and she listened to me and she confirm that there is an arrangement done on my account, I then asked her to change the account number and all was well, now that is Customer service. I then called Old Mutual in Heidelberg and guess what, the Devil answered the phone(Tsholofelo) I asked to talk to her manager and she put me on hold forever, I had to hang up. I need a call from this imbecile to apologize to me and can she be taken for training to teach her what is Customer service and also have product knowledge. I am so disgusted by this, actually it makes me angry because I know what customer service and what I got was shocking.