Awful experience with Facebook ads. Anyone else had this happen?

Hi all,

Why Facebook, why?

Over the past month we've started to ramp our FB ads campaigns for an app. We managed to pretty well to keep our average CPI sub 40 cents, which we've found pretty good for our product/demographic.

Then out of the blue our ads randomly stopped running with not notification. Not even a single dollar spent.
We couldn't find anything we'd violated, our ads were pretty standard "picture with some text" about our app.

After getting a hold of Facebook they told us our account was "under review" and all ads would be stopped until the review was completed.
2 days later our ads were turned back on and FB told us there were no issues, their review was just a standard review.

Then a day later our ads stopped running again. Again we called and were told we're "under review".

Rinse and repeat for the past 2 WEEKS. To date we haven't been told why we keep going under review, we always pass whatever "review" is going on, and our ads are always turned back on without incident.

Anyone have experiences like this? What options do I have? Could some other factors be at play here?

We're burning time and losing thousands of potential users each day we have to go through this.