Moving upgrades between multiple plans
I have 3 mobile plans for my family under my account. I recently wanted to move some upgrades between plans to better balance them, so I first removed some of the upgrades and waited until the next billing cycle for them to become available (they are now). However, on the "My Upgrades" page, I only see 1 of my 3 plans listed, so I can't add any available upgrades to my other plans. If I click on one of my available upgrades in the "My Upgrades" popup window on the bottom right, it asks me to add a new plan although I already have 3 plans, 2 of which have no upgrades applied and should therefore have empty slots available!
How can I add my upgrades to these plans?