Complete incompetence and breach of contract

I app**** for vehicle finance in March 2015. After 9 horrible weeks having to deal with *********** consultants from both the VAF department and the Complaints Resolution Centre, my financing was finalised (no thanks to either of them). After my 2nd payment was debited I realised that it is the wrong amount and not the one I agreed to in the contract. I contacted the call centre and made an inquiry. It came out that they were using an INCORRECT contract and not the one that I signed and agreed to. Since then no one has even tried to correct it or to provide me with any sort of explanation. My phone calls are not answered and no one responds to my emails. This equates ***** and I expect it to be addressed appropriately! I do not have the energy to deal with this level of incompetence any more. I don't want a generic reply to this complaint and I do not have any trust in the Complaints Resolution Centre to handle this complaint either. My only wish is to warn any person who is considering becoming a Standard Bank client that they do not care about their clients and they do not care about their complaints. I will be closing all my accounts and moving all my products to another bank.