Impossible to obtain a settlement amount

I have tried since the 25/3/15 to obtain a settlement amount in order to settle my account in full. However, after at least 30 phone calls - I am still non-the-wiser!! How difficult can it possibly be to give me the settlement amount??? Every call centre agent that I speak to has a different story and gives me another number to call. Can't believe that Woolworths and its agents are making it so difficult to pay them - surely they want all their debtors to pay on time???