Hmm. This is a hard situation, I have had similar issues. You can go the legal route, but that's just messy, so it depends on how big an issue this is for you. Alternatively, if it's a site similar to this, comment on their story and link back to your original work. Call them names, if you like.
In the mean time, keep trying with the website admin. Sorry I don't have better advice for you.
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