stupid response

I called the CellC, customer care, to request a settlement letter for my cellphone. The Agent asked why im settling and I informed her my Debit Order amount increased and I wasnt informed as to why, I sent an email to enquire and I didnt get a response which I felt comfortable with. The Agent has the odesity to say, petrol prices increase and so does everything else. That is rude and unprofessional, an agent can never make such a statement, you escalate to your superior when faced with a client who is making an equiry you dont have an answer to. I cannot pay extra and not be told why im paying extra.