It makes sense that you can only select RapidFree if you have no files to start with ...
But it's impossible to delete files ... on one account I managed to move 4266 files into the trash, but I have no clue how to delete them permanently. I select them [er 100 from the trash folder, it seems they are deleted permanently. But if you log in again, all the files are still in the trash folder.
The other account has 1 file .. but when I delete that file it isn't deleted. I just can't get rid of it!
Perhaps RS doesn't want you to get rid of your files?
UPDATE: My third account has no files, but 'rapidfree' cannot be selected.