Barrets & Associates not providing Statement as we request

Account Number : *** / Residual Account Number : ***. FNB Debt Collectors & Barrett & Associates are not transparent with my Fathers Debt. My father is a Pensioner and as his children we are trying to help him to clear of his Debt with Fnb but we were referred to Barrettt .Now this Debt Collectors every time we ask for a Statement, they just reply with an amount, there is no Statement which clearly states all amount and how they got there. Today they rep**** with "Make a payment of R10600.00 in 3 days, they say its a Compromised settlement. I want a Statement so when we pay in 3 days as they advised we don't get a surprise that we its not complete or just stories ? We need transparency as consumers as we feel we are in the dark with this account ? When we call the land line its just rings and no answer