I have a basic account. I had current usage of 2.52 of 3GB; was told "we've interrupted your sharing activity", which applied to all files. I read the article about why it might be happening. I was urged to upgrade. Instead I permanently deleted several items I had already deleted, in order to "empty my trash". It now shows I'm using 1.63GB of 3GB. I'm still not able to share files, with no further explanation.
Thoughts?