How to get the balance sheet from the association?

I am member of the registered association. The association is not properly maintaining the accounts. I want to get the balance sheet of the association. But if I write the request in Blank white paper they will ignore it. What is the legal way to get the Balance Sheet?|||If it's a privately owned company or 'association', then they are not required to disclose their balance sheet or income statement or any other financial statement.