Tflux hassles

I have a tflux account with a 40GB space limit. Right now I have 10GB free. But I can't download a 6GB torrent because tflux needs 12GB of space for downloading and that puts me over my limit.

Here is another issue. I downloaded a 9GB torrent and then deleted the torrent but not the data. Now I want to seed that torrent using my girl friend's account. I uploaded the torrent but I can't run it because tflux doesn't realize that I have already downloaded the data and it thinks I need an additional 18GB of disk space.

Will I have the same issues if I switch to another provider that uses utorrent?