Does deleting an IBM COS instance also delete all buckets and files within it?

Question

I'm aware the COS API has an operation to DELETE an "empty bucket" but what happens when I DELETE a COS instance X with buckets A, B and C inside X and then A, B and C all have multiple files within these buckets?

1) Does deleting the COS instance delete recursively? 2) Does my bucket names become available after a while to use again? 3) Should I be able to verify in UI with usage page that deleted files are no longer counted in my usage?

Answer 1

Per developers in IBM team dealing with Cloud Object Storage:

When an account is marked for deletion, the buckets that are part of the account are marked for deletion after 7 days. Charges for that account stop immediately after request from user is received, however, actual deletion process is not guaranteed to occur exactly at 7 days, it could take longer. When the buckets are eventually deleted, the bucket names can be reused.

So, as per my questions above, the answers are the following:

1) Yes
2) Yes, best case scenario in 7 days
3) Yes, but might take few minutes