Q: Rescue email

You appear to have forgotten your security answers; if so, you need to ask Apple to reset them. To do this, click here and pick a method; if that page doesn't list one for your country or you're unable to call, fill out and submit this form.

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When you've got your questions reset you can then update your rescue email address for potential future use (if the address that you want to use is currently an alternate email address then you will first need to remove it as being that) : Manage your Apple ID primary, rescue, alternate, and notification email addresses