Debit order re-instate

On 04/03 I Spoke to Annetjie and Mike at your collections department regarding an arrangement for the arrears amount on my account and also requested to re-instate my debit order for the full vehicle instalment to go off on 26/03. Debit for arrears went off 27/03 but not the instalment. Phoned again on 27/3 and spoke to Muren who advised debit will go off that eve. Still nothing went off and now showing that I am in arrears again. Called 02/04 unfortunately did not get the consultant's name but requested to speak to a Manager who can assist with my query. Was transferred to Imraan after about 20 minutes on the phone. Promised to call me back within half an hour...still waiting and still no vehicle instalment that went off. Will someone please attend to my requests!!! YOU are affecting MY credit profile...and I am sick and tired of trying to sort it out, it cannot be that difficult .This is by far the worst experience I had with Wesbank