Hello Ash1959,
It sounds like you do not remember setting up security questions for your Apple ID and need them reset so you can set them up with your answers. You can use the the following article to reset them with a rescue email address, and it contains a link to contact the correct department if you do not have a rescue email address set up already.
Rescue email address and how to reset Apple ID security questions
http://support.apple.com/kb/ht5312
You can edit or delete your rescue email address at My Apple ID. To edit your rescue email address:
- Navigate to My Apple ID using your web browser.
- Click "Manage your account"
- When prompted, sign in using your Apple ID and password.
- Click Password & Security
- You'll be asked to answer 2 of your 3 security questions before you can make any modifications. If you are unable to remember your answers, you can choose to send an email to your rescue email to reset your security questions.
Note: The option to send an email to reset your security questions and answers will not be available if a rescue email address is not provided. You will need to contact iTunes Store support in order to do so.
Thank you for using Apple Support Communities.
All the very best,
Sterling