I've run a significant amount of traffic with Facebook Ads and never saw click fraud anywhere close to these kinds of numbers. By estimates it was somewhere bet

I've run a significant amount of traffic with Facebook Ads and never saw click fraud anywhere close to these kinds of numbers. By estimates it was somewhere between 3-5%, which is pretty typical across major ad networks. It's also worth noting that Facebook has given refunds for click fraud in the past. That is if you can actually get a hold of someone in support who will talk to you, which isn't easy.