Attitude and Billing issues

Have been a client of Cartrack for many years, with monthly debit orders. For some reason the debit orders stopped end of 2014 and in Jan 2015 I got a call from a Cartrack credit controller, Mr Booysen, informing me that the account is in arrears. Can't explain to me WHY the debit order was discontinued (actually sounded like he didn't even know there was an arrangement for debit orders) and gets extremely agitated with ME (the client) when I insist that he finds out and preferable email me a response, because I refuse to speak to him again. Please note Cartrack PR: Mr Booysen needs to go for basic business etiquette classes if he's going to continue working with your clients, although a certain Miss Govender (Debtors Manager) stepped in and explained that he's \actually such a nice guy". So the debit orders were reinstated"