This also assumes that the person placing the order or scheduling the closing is enabled to quickly and easily provide that payment - and in the case of most businesses with more than a few employees, that's just not very likely.  Of course, the larger the client company, the less likely that person would be armed with the company credit card or access to the bank account.

Nice theory, but one that would require a pretty broad change to the client's system of 'checks & balances' so to speak.  I agree with Robert that it would be much quicker and easier for the client to simply call someone else.