I got my account suspended in June for review manipulation accusation and got it reinstated on 21st June, after that I removed all ebooks to avoid any future issue. I did not do anything since then I my account accept Amazon ads and they terminated my account on 14th aug with below mentioned email.
Hello,
We are terminating your account effective immediately because we have found activities in your account trying to manipulate our services.
In addition to closing your account:
• You'll no longer be eligible to receive outstanding royalties.
• You no longer have access to your account. This includes editing titles, viewing reports, and accessing other account information.
• Published titles will be removed from Amazon.
As per our Terms and Conditions, you aren't allowed to open any new KDP accounts.
See our Terms and Conditions:
If you have questions, you can reply to this message.
Regards,
Amazon KDP