The OR will look into all your financial affairs and will normally want bank statements etc but I believe that if you can't access them then the OR can sort it for you.
The friend in my adversity I shall always cherish most. I can better trust those who helped to relieve the gloom of my dark hours than those who are so ready to enjoy with me the sunshine of my prosperity. – Ulysses S. Grant
The OR will want to see bank stats and credit card stats, loan agreements, details of any house sales, vehicle details, income and expenditure info. Possibly more needed or less depending on your circumstances.