That is kind of odd... because you wouldn't even show up on our list unless you had submitted something in the past.
Do you share the account with anyone? Is it possible that they may have uploaded something in your place?
There's nothing on your profile now... but had something been submitted before the redesign took place, and you had been banned, the submission would have been removed shortly after you were banned. Which could explain the absence of any audio on your profile now.
This is the only possible reason I can think of that you would have been banned from submitting audio.