I have been using dropbox to back up my university work since I spilled a bottle of water over my laptop last year. I as soon as I got my laptop back I downloaded dropbox. I have recently run out of sapce but cannot afford to pay the monthly free for a premium account, so I am trying everything to get more free space. I have dropbox downloaded onto my computer but it is not registering that this is the case on my "list of things to do to get more space". I have tried downloading and reinstalling, updating and unlinking and relinking my account with my desktop app and nothing has worked.