Why not “accounts of”?

This display—or more likely “liberal baksheesh”—worked for now. Parker meticulously sent secret reports to the syndicate, covertly named FJMPW after some of its members, and accounts for the bribes, which on his first visit cost £1,900.

Excerpt From
Jerusalem
Simon Sebag Montefiore
This material may be protected by copyright.

Context: Parker and his retinue managed to bribe the Jerusalem officials for permission for an excavation in the holy city in search of the Ark of the Covenant.

Hi. I take “accounts” to mean “record of money” but why “for” is used here instead of “of”?
Thank you.