OP, you posted: Thanks all, the driver recieved an email from company yesterday. ...
And what did this say?
Your company aren't interested in the finer points of PoFA etc. etc, they want the matter fixed by you would be my guess. They don't want to embark upon protracted appeals, letters from debt recovery companies and what have you, they want it dealt with. And not wanting to get engaged extends to not authorising an employee to act on their behalf...
..is my reading.
C'est la vie.