Same for me, it stopped working 3/4 days ago, after having worked perfectly (on computer and iPhone) for days.
I suspect also a problem on their system ...
Is anybody else experiencing trouble connecting to his account ?
I get this message after trying to login :
Internet Explorer cannot display the webpage
Most likely causes:
You are not connected to the Internet.
The website is encountering problems.
There might be a typing error in the address.