Add collector to my job title

I have no problem helping other departments with accounts that we share but I do take issue with the fact that I'm being asked to get my customers to send something in writing saying they will actually pay a past due invoice before we can ask the collectors to do their jobs, and collect.

I've spent hours researching these unpaid invoices for them and already given them detailed information about why each invoice balance is valid, and they have done nothing. Now, these balances are reflected on a report making it appear that I have failed to do my part and respond to these issues.

To add insult to injury, it's my own boss telling me to do this. I don't believe she clearly understands anything about what we do on a daily basis. Nor does she have an inkling of how much push back we get from other departments that don't want to do their fair share.

Unfortunately, there's no reasoning with her and she doesn't understand where we are coming from. It's like beating your head against a brick wall!