Unhappy client

I did monthly instalments to a ABSA vehicle account provided to me for almost 3 years. I recently received calls that I still have a large amount outstanding and according to my calculations the account should be paid in full. Upon investigation I discovered that the account details changed without informing me. I was informed about 3 months ago that someone will contact me as the money just needs to be transferred into the correct Absa account. I am still waiting for the call and no money has been transferred.<br> <br> How can I resolve this issue and please respond via my cell number provided and not via email as per previous complaint about the same issue.<br> <br> Unhappy consumer