I don't know whether or not you can change it by logging into your account, but when in doubt, I would just call Intuit to get it done.

I'd just call and have them walk you through how to make the change or I'm sure they can make the change for you.  I just made some changes to my package with a sales rep before my auto renewal hit.

I was actually on the phone with a customer service rep earlier today to discuss the change. I told her I would think about it and call back to take care of it.  Her reply was that I could just go online and take care of it by editing my quot before the auto renewal date..  That’s why I thought I just couldn’t find where to do it!?  I will just call them back! Thanks!!