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As a matter of urgency, you need to change your forum name, you appear to have used your email address when creating your B&W ID which opens your account to unwanted messages, spam, etc.
www.benefitsandwork.co.uk/guides-for-claimants/faq/forum To answer your question.
I'm afraid you are not eligible for the Premium as you are claiming UC and this does not include any premiums.
Gordon