Originally Posted by AaronM

Now let's address what you've mentioned here...

Based on what you've posted in this thread, you've selected the following option for your Ad Set to Bid Amount: "Automatic - Let Facebook set the bid...."

I've seen the kind of surges you're talking about and they usually happen when there are fewer ads running at whatever given time the increase happens. So, your ad cost drops AND it's shown to more people. Supply & demand.

Also, I hear you talking only about clicks. Are you using a proper Facebook Pixel to track everything or did you skip the pixel and are relying on FB data only? Maybe you have an old pixel installed that isn't tracking properly? Fuck if I know. I can't put much stock in anything you've posted though since I know your primary gripe is inaccurate.