My apologies, I certainly misinterpreted the instructions as 'please do not submit your site to any category (or subcategory) more than once under a different guise'. Which I wholeheartedly adhered to. I didn't realise that similar subcategories were also prohibited.
A subsequent re-read of the instructions did a little to clarify this for me. In my opinion the message would be better presented in one or both of the following two ways:
1. An automatic email to confirm submission which specifically refers to this rule of submission.
2. A fail-safe system which prohibits the same URL being submitted more than once within a category (checked against a database).
I found it difficult to pigeon-hole my site within the DMOZ category tree and therefore chose multiple categories, perhaps you could advise.
Uncut.co.uk deals with Music and Movies within a specific editorial concept.