Force Heading tag prefix ONLY on pages with the {toc} shortcode

Thanks for this good plugin that works out of the box. I placed the {toc} shortcode on one page and this works fine for that page but the think is I use the <H2>, <H3> and <H4> on other pages not having the {toc} shortcode.

What I expected
That the plugin should alter the Heading tags by inserting the predefined prefix for <H2>, <H3> and <H4> if only the page has the {toc} shortcode embedded while other pages without the {toc} shortcode will have their <H2>, <H3> and <H4> tags unaltered.

What I’m experiencing
Every other page having the heading tags <H2>, <H3> and <H4> automatically appear with the predefined prefix and I think its unnecessary because these pages were not written to have a ‘Table of Content’ like structure. Kindly see this Terms of Service page. for the issue.

Please I need a solution for this?

http://wordpress.org/plugins/content-table/