Email access blocked for no good reason

How can i unblock my 12yr old Hotmail/Outllook. I have cable but I still pay MSN $19.00 per year and now this nonsense.
Why have i been blocked?
The keep asking me for my mother's birthplace. After all these years I don't remember if I used the city or the Province in Canada
Then, they demand that I tell them the subject matter of my recent emails. Are they nuts or just choose to be as annoying as possible? All this on top of my $19.00 per annum.