Check iPad RTG sim credit

Hi

I've got a vf rtg sim in my iPad and was wondering if anybody could tell me whether there is a quick and easy way to check your credit / data usage.

I'm aware of the usage counter that is built into the ipads menu, the issue with that is it needs resetting each day. I'm also aware that I can log into the vodafone site to check the credit remaining but am hoping there is another way....perhaps an url that requires no login ala three's "My Three" page on the iPhone?

Thanks

O/s