Did you all use the API then?
There are multiple things that could lead to a termination.
I suggest to read the following, and if you think you didn’t do anything wrong come back here and try to explain how you did use the api.
I have heard of openai accounts were on sale in darkweb. That might also be an explanation.
Maybe someone has used your account.
You should check your logs against usage
https://platform.openai.com/account/usage
Or maybe you have an application online and someone was prompting something that goes against the terms.
You could have avoided that by using the moderation endpoint.
https://platform.openai.com/docs/guides/moderation
If you still can’t figure out how this happened reach out to