No feedback given on query

I had tried making arrangements for my arrears to be respread and sent through all my documents. Standard bank vaf did not action my query and handed my account over to an external party with no notification. This external party, themba consulting has no business line or business email which makes it look like a fly by night business. Themba consulting then threatened to repossess my vehicle after countless attempts to arrange a new repayment plan. Standard bank is yet to respond.