Hi Tim,
When you delete a user account, the account becomes inactive. The deleted user will be deleted after 30 days. To delete the soft deleted user without waiting the 30 days, I suggest you refer to this link.
If this issue still persists, I would suggest you post a new thread about the detailed information of the issue you encountered and the steps you have done to resolve it, this is so we could focus on your questions and provide more specific solutions for you.
Thanks,
Jerry Cen