From Geekzone(geekzone.co.nz)
There was a glitch occurring yesterday (and possibly still today) where people were logged into different accounts (not theirs) when changing the page, showing peoples personal details, including home address, phone number, order history and card details.
Recommend changing your password.
Wow, that's bad. Looks like the entire site is currently offline, according to downforeveryoneorjustme.com.
I had the same thing with 2 degrees a few years ago - logged in as me, but it was someone else's account: an employee from their marketing department. I could see her products, her staff discount, how much data she had used and could have changed details or services if I had wanted to. Contacted them, thinking that they would be interested and concerned about it, and they basically said "ah, probably just a glitch. Looks OK now".
I hope they scurried around in the background in a panic fixing it, but it was instrumental in me moving away from them.