ah yes, that could be it. We've had a confirmed report from another members that the Credit Report doesn't seem to work correctly when they tried to access it from outside of the UK (Greece specifically in this case). We got in touch with Call Credit and they did confirm for security reasons it was unavailable outside the UK, but can't remember if it was a blanket statement on all territories or just a specific few.
But don't worry, it will all work as usual once you're back in the UK. Hope that doesn't cause you too many issues!