You can permanently delete interviews from your account directly from the Assessment list.

1. Go to the Assessment list and click Filters in the top right.
2. In the filters modal, filter by One-Ways, scroll down to Add filters, and click Deleted. This will add the Deleted filter to the list.
3. Select the checkbox next to Deleted and click Apply.
4. Select the interviews you want to permanently delete by checking the boxes next to them and click Permanently delete interviews.
5. When prompted, type DELETE in the text field and click Delete to confirm. The selected interviews will be permanently removed from your account.