Automatic subscription level change

Hi

I'm note sure if my last post was received, as the submission seemed to freeze.

Hoping to go live with this on saturday, but have some problems. Have set up a 3 level test subscription where each level is a day. Have set up one user via the dashboard and allocated them with the subscription and have set up a test user where I paid a £1 through paypal to access the subscription. However, when I reach the time the levels should move to the next level on both test users, it remains on the first level. Have I got the wrong end of the stick here, or should the process move on automatically? I hope it's the latter as we have got quite a few clients and I don't fancy having to change them manually.

Regards
Andrew Sharp