Quick to hand over - not so quick to provide a detailed statement

How difficult can it possibly be to send a customer a statement history. We have been making payments using the incorrect reference number, which yes is our fault. However all that I have been asking for for months now is to receive a full statement history so that we can see which payments have been allocated correctly and to search for the payments that have been made with the incorrect reference. Surely Foschini want their money paid as eagerly as we want to resolve this matter. Instead I have e-mails with no feedback provided and no detailed statement as requested.