said by shmltn:
See this is where you continue to misunderstand the principles involved.
The waiter would never say "you'll have to see the manager." The waiter would see the manager and if the waiter dreamed of requiring the customer to do anything in particular the waiter would be rewarded with the loss of his job.
The Billing department offered to call the Disconnect department for the customer. He refused. He wanted THEM to handle it without calling another department, an operation which was impossible. It would have been equivalent to asking your waiter to resolve the issue WITHOUT talking to the manager. Waiter, resolve it, right here, right now, don't go talk to the manager.