这样的声明该怎么写呀

客户发了这个东西，要求我们写给声明，我该怎么写呢 We are preparing for our annual audit and require a statement or notice of any balance that may he been due to you on the 28th February 2013. Please supply me with a statement of any amount due as at the 28/02/2013 or a notice of Zero Balance if that may be the case. If you cannot provide a statement, an email confirming any amount due on the 28th will suffice. 谢谢。