Poor service

I'm a volkswagen audi financial service client for the past 10 years and have always paid cash as my payment method even on my previous contract i paid cash, I'm now phoning to arrange to pay cash and the lady Lorraine Laltha informs me there's no way that it can be done even though all my contracts have been cash, i prefer the cash method because I'm able to pay in advance and not have the hassle of the debit order coming back unpaid because my invoices sometimes gets paid out late, so she clearly is either uninformed or didn't want to help me, very poor service.