Hi, and thank you for asking your question.
If you received any message on Facebook notifying you about a large sum of money won supposedly via a Facebook lottery, I'm afraid that's a hoax/scam, and NOT from Facebook. Please check these links:
If you already paid them what they asked for, please start a chargeback process with your bank/credit card company ASAP - they will be able to get things sorted out for you.
If you need any further assistance with this issue, please be sure to reply back to me below.
Otherwise, if you could kindly click on (and submit) one of the stars at the top of this page to rate my service, I'd greatly appreciate it. Thank you.
If you need any further info on this scam, please do not hesitate to let me know (using the Reply box below.)
Otherwise, a positive rating at the top of this page would be much appreciated. Thanks!