What happened to my book and account was that someone paid for bots to mass report both book and account which resulted in me losing everything, the issue was completely resolved after they checked what was wrong and they reactivated it. No loss was gone btw, all comments and the total reads was back. Took a few days, but it all worked out in the end. I suggest you write first what happened and what you saw before the books were gone, and then I want you to ask them the reason why your books got “taken down”. It might also have been a issue at their end, but sending a email to their support is where your answer lies <3