Me again :)

My postpaid SIM was activated this morning and everything's working great except for Your Telecom. I open up TWorld with no issues, but when I select Your Telecom, I get the following message:

System unavailable     021 159 xxxx (my correct number)

Sorry, the system is currently unavailable. Please try again later or if the problem persists, call us on *123.

I'm just wondering whether anyone else is having issues, or whether it's isolated to me (in which case I'll chase them up).

Thanks!