Prior to a year ago... I had the basic account with a bunch of 'bonus' storage for different reasons. In total I had about 113GB (I don't remember the exact). At that point, I bought a One Year 2TB plan at a discount through a third party. I ended up having just over 2.1TB...
Fast forward to now... my 2TB plan expired recently (not sure when, but I just noticed it today) and the app in my system tray is complaining that I'm using 87.5GB of my 13.3GB. Where is my other 100GB that I had prior to this? I made sure before my 2TB ran out I was back under what I should have had so that Dropbox wouldn't break.
Obviously with the 2TB expiring I lost the ability to actual contact Dropbox and forced to 'hope' for help here.