Would you please share us more infomation or picture? what's your form tables looks like? it's very helpful for us to do more investigation. thanks!
Could you please to make sure you use the product formscentral to design the form? https://formscentral.acrobat.com/SignIn.html
Another forum " form in design" to discuss " Table of contents". It's very similar with your question, probably you will find the correct answer for your issue. http://forums.adobe.com/message/2093263#2093263 (table contents page range)
http://forums.adobe.com/message/880634#880634 (changing TOC title)