I have a 50GB subscription to Skydrive.

I recently changed my Microsoft Account because I set up a new one using a custom domain.  This wasn't a problem because I logged into my account using a local account and then logged into SkyDrive with my old MS account.  No problem.

Then I installed windows 8.1 and now I'm stuffed.  I don't want to log in to Windows using my old MS account - but my new one doesn't have my subscription attached.

I know MS don't move storage between free plans, but is it possible to make the move on my paid plan?  Or do I just cancel it and then start again?  (That would be very annoying, although it's due for renewal next month, so it could be more annoying).

Help!