Call them, its much quicker to resolve things that way.

I had a similar problem earlier this year when I moved from the UK over to the US. My account got frozen as I was suddenly logging in from a different country. I didnt find out why until I emailed them asking why my password no longer worked. In the end I had to email them a copy of my visa,my passport,and even my US credit card I used to desposit. Worked out in the end but poker firms are very strict over things like this which is why its better you call them.