digital vault cant register

I've been trying to set up free digital vault for a week. Every time I fill in the details new username password etc and get to the final stage submit after a few seconds of the green loading bar along the bottom of the screen the message about the "server having problems please try again later" pops up. Any ideas?

I've done it. It worked today but also wondering I was setting up the vault with the same password as used on BT. Tried a different one and it all went through. maybe coincidence.........