I've been involved in a few audits, mostly from the side of the business being audited, preparing all the documents and statements they request and answering all their questions. Trust me that this is 'day 1' of the audit type stuff. One of the first things they do is check the bank statements match the accounts and then pick a sample of customers to do a follow through of the process and documentation in terms of checking the contract / sales invoice / payment / service delivery. I really can't believe how this financing scheme didn't get noticed.