Unable to use my account due to termination by system

Summary:

Since few days my cloud account suddenly was terminated with no reason or explanation. An error popped up saying "You don’t have permission to view these resources in this compartment. Try another compartment, or contact your administrator for help."

Content (required):

All the areas shows below error. I created instance and was running properly but now it does not appear.

I tried contacting support but only response i got is

Can anyone please help and reinstate my account or provide any solution