It seems that multiple accounts has been flagged, probably based on Watermark,
They have emailed me that I have violated Terms and Services.
The things is that we dominated several key categories in my country (9 out of 9 pictures), I used spin with hastags and some other techniques. Seems some competitor got pissed off that ONLY our pictures were showing ...
I think lesson is probably:
Do not show Line ID watermark on Pictures (I guess that is how it got matched)
Use cloaking with links instead of saying Line ID in description
Let me know your thoughts!