AdMob Account Suspended Shortly After Adding Rewarded Ads

My app is 6 months old with 300 installs. I was using banner ads on the home page and interstitial ads on other pages. On August 1, I added Rewarded ads. Two days later, I received a suspension email. I have never asked anyone to click ads or buy installs.

https://preview.redd.it/a8krp3157xih1.png?width=540&format=png&auto=webp&s=1259dad810ae0887f88dddaeb2216f94486a5f74

Here is my setup:

• My 2 devices are configured as AdMob test devices. Banner and interstitial ads successfully showed the "test" label on my devices. When testing rewarded ads, I used the test ID.
• Google says: AdMob test-device mode applies to the AdMob Network. If you're using mediation, third-party ad sources can still serve live ads unless their own testing mechanisms are configured.
• also i did know that:

• My UI shows a text prompt at the top of the page: "Watch a quick ad to unlock 5 credits?" with a button below it to start the video. I am not asking or forcing users to click the ad itself, so users are voluntarily choosing to watch an ad in exchange for an in-app reward.

My current suspicion ranking

1- New rewarded-ad implementation/testing — strong possibility because of the timing.

2- Testing/interaction from my own devices, especially if any live ad was served despite test-device configuration.

3- Mediation source serving live ads during testing.

WHY GOOGLE DOES NOT JUST SAY THE EXACT CAUSE SO WE SIMPLY AVOID IT?

the only dumb answer i found after long digging around is:

Google keeps the exact suspension reasons vague to protect their fraud detection systems. If they provided the exact cause or specific data points triggering the suspension, malicious actors and click-farms would use that specific feedback to reverse-engineer the algorithms and bypass detection in the future.

GOOGLE CAN EASLY JUST DON'T COUNT/IGNORE THAT VERY FEW CLICKS INSTEAD OF A SUSPENSION, OR AT LEAST A WARNING & IF REAPEATED A SUSPENSION.