Hi, this is Jane Doe. I would like to report fraud. 
Can you tell me your account number, please?
I do not remember
Could you provide your date of birth, please?
08/06/1963
What was your mother's maiden name?
It was Cooper
And what was the name of the pet you had as a child?
Poppy, she was the best!
Could you provide a detailed fraud report now, please?
There has been frequent transfers of $10 out of my account. It was not me.
Your report has been successfully submitted.
We will have a look at the matter ASAP and will contact you with details in due course.