Retained Earnings is incorrect

I have been speaking to MYOB support about a similar but not identical problem.  The trial balance does not balance because the bookkeeper zeroed the totals on some creditor invoices from the creditors ledger five years ago.  The imbalance shows in the retained earnings account even after the creditor invoices have been returned to the correct values.  Every time I call MYOB support they assure me the problem has been escalated to the Data File team and they will email me immediately.  I haven't yet heard from them.  Like Leith I find this very frustrating.  I wonder if there is some way I can escalate the problem or speak to the Data File team directly.