several errors with the oracle account

I have a few bugs that I encountered a couple of months ago. then I decided that it was temporary and forgot about it, but remembering again, I decided to read about the problems on the forums, but none of the solutions helped me. how can I contact support to delete my account or restore it to its previous state.

Error: "You don’t have permission to view these resources in this compartment. Try another compartment, or contact your administrator for help." in Instances.

Error: "Failed to load domain replicated regions" in Regions

Error: "Authorization failed or requested resource not found." in Tenancy details