I can't create a ChatGPT account

This is the error message that appears: The email you provided is not supported.
I’ve tried everything.

I tried in an incognito window and nothing.
I deleted all my history and nothing.
I tried in a different browser and nothing.
Tried using VPN and nothing.
I even tried opening a help ticket on OpenAI itself, but they close it before responding.

I do not know what else to do. I can’t create the account with my hotmail or Gmail email. I cry out for help because I really need to use this thing.