If we suspect that your account activity constitutes an abuse of our system or a violation of our Terms of Service, your account will be temporarily banned from using WhatsApp. You will receive a warning message in the app that contains the duration of this temporary ban.
During the temporary ban, you will not be able to access any part of your WhatsApp account. You will be able to use your account again after the countdown timer runs out.
To receive more information about this temporary ban, tap on the Learn more option you see on the screen.
Activity that can lead to this temporary ban includes (but is not limited to):
If you see the message "Your phone number is banned from using WhatsApp. Contact support for help.", please read this article.
WhatsApp Support Team