I was at a point where I just said "screw this, I don't care about the free trial, just give me an account where I'm supposed to pay for everything". For some reason you have to go through the free trial in order to get a regular account.
I didn't even try out the platform once I got my account. They managed to drain all my energy in the sign-up process.
I'd rather go bankrupt by AWS/GCP nefarious egress fees than having to deal with Oracle again. Serves me right for giving them a shot.
I second the recommendation to stay as far away from Oracle as you can, even if their OCI pricing seems incredible.
Providers always have a false positive rate on signup experiences and last time I looked Oracle had provided a way to contact them and say "You got it wrong" (and they are reasonably good at fixing those situations).