ChatGPT Plus - Termination notice issue

Hello

I recive today this email
Dear ChatGPT customer,

You are receiving this email because we have identified suspicious activity on your account. In order to protect our platform, we have refunded and canceled your subscription. You will no longer have access to ChatGPT Plus service.

We take fraud prevention very seriously, and we want to ensure that our platform remains a safe and secure place for all our customers. If you believe that this action has been taken in error, we invite you to submit an appeal to have your account reinstated. Please visit help.openai.com.

Thanks for your understanding.

Can you please help us resolve the issue
we have done nothing suspicious on the account we are using this account in an educational ERP
Can you help us restore the account please

Could be that your users are creating the suspicious content.

Can they create information that becomes part of a prompt?
Are you logging such to keep an eye on it?