I was charged by the hotel with an arbitrary amount as a deposit before I stayed, so this is a separate charge on my expense report.  My company does not have a category for such a deposit.  If I select lodging, the amount will does equal any of the other charges on the final hotel bill, so I can't just leave one of those charges off.  How should I categorize this fee?

On the final hotel bill, I must itemize all of the actual room charges and taxes, so the final amount itemized exceeds the payment by the original deposit charge.  I tried adding a negative amount equal to the deposit, but this is not accepted. 

I tried to categorize the deposit both as a general lodging amount as well as a miscellaneous amount and then categorize the negative amount on the final hotel charge accordingly, but this didn't help.  Any ideas?