Payment Arrangement made but still threatened to repossess vehicle

I called standard bank vehicle finance to enquire about a vehicle repossession against me whilst the matter was pending decision as my attorney had sent their attorney an email to confirm payment arrangement. I spoke to a person by the name of Ellenice Andrews on 26 January 2018 who told me she had just started working at standard bank at the time. She didn't even know which Standard bank attorneys were handling my account and asked me if she could get back to me also asked if she could call me on the number I had used. I agreed. 29 May 2018, no one from Standard bank has called with feedback on arrangement I had made and got a call to get my car repossessed. What a shocking service from Standard Bank Vehicle Finance!!! All this was after they refused to revert on my query on repayments that were suddenly higher than the agreed amount without notification.