Oracle Cloud account compromised (changed email and password)

Summary:

Hi, I am writing for a friend whose account got compromised: her default email & password got changed, and the password recovery email never arrived. She just received the "email and password changed" email (in chinese) but cannot login anymore. I can provide the account details via PM.

It's also kind of urgent since the account could be upgraded and I will start being charged for services used by others.

Thanks.