I recently run a contest campaign on my site and I also picked a winner for this. Right after the contest had ended, I told the winner (her) to be patient and that I'll let her now when she will receive her "gift".
However, different things got up my way, I got ill etc and therefore I didn't have any time to check my mail inbox. When I finally returned online, she had already sent several complaints to my email saying that I'm sick person, scammer etc
I tried to be nice and I told her that she will receive her gift in next month (in 20 days) - because I couldn't delivery it right away due to the nature of this gift.
After 15 days I was ready to deliver the gift, but then I noticed that she had spammed 40-50 messages to my twitter account saying that I'm scammer and people should avoid me and my site.
I also noticed that she had LITERALLY wrote to EVERYONE who is following me that @mynick is scammer and bad person.
I'm pretty much shocked and I don't know what to do anymore. Obviously I would pick another winner now and deliver to gift to someone else, but what should I answer to that kind of person?
I also noticed that she makes living by participating in different contests 24/7, promotes them through twitter and lives off from gifts and contests.