There seems bug with this part ,I can't ask for more space even though there are $10 in my account.

Or maybe I have made some mistakes,can you help me ?

Click on "My Account" on top of the homepage, and then click on Subscribe/Unsubscribe. You can select a subscription option there. Please let me know if you have more questions. (Send an email to webmaster@drivehq.com)

I am having a problem ordering more space.  I go to the subscribe/unsubscribe area and click on the option that I want, but there is no button or link or anything to confirm.  I have deposited money but cannot figure out how to subscribe to more space.  Please explain. 

BTW, I am a Roxio user so my account choices are a bit different.  Again, I can click on the choice, but there is nothing to confirm or verify my choice.