It has been awhile since I last worked with a docment as you described. But, when I did, I used http://shaunakelly.com/word/numberin...ppendixes.html as my guide.

Your problem appears to be that when you defined Heading 6 for your Table of Contents, you may have omitted to deselect Heading 1 from the TOC Options dialog box (I am guessing that you have BOTH Heading 1 and Heading 6 selected).

You can check that out and adjust (if necessary) by going to the References Ribbon, click to expand the Table of Contents menu, and select Insert Table of Contents.

Under the Table of Contents tab select Options to gain access to the TOC Options menu. Scroll down the TOC Levels and delete all Priority 1 levels except the Appendix Heading (if that is what you named it) with a priority of 1.

Then go back and update your TOC to verify.

Hope this helps...If not (that was my guess), hopefully, another user can assist you.