how to report abuse in facebook chat

some one that i thort was my friend was wat i would say abusive to me im not quight sure what to do i feal that action should be tacken, there is one more detale she has to acount whitch i beleave is not allowed i have kept the conversation if any one wishes to see it let me know and i will add it

Go to the profile of the person you've chatted with and click on "Report/Block this person". Be sure to copy & paste the convo and send the report to [You must be registered and logged in to see this link.]

Good luck