Apparently I've been shut down. I got a boiler plate response (see below). I wish I knew what occurred. I don't take that many surveys, and basically just use this to keep inactive accounts from expiring. I had a big balance that is likely gone.
Thank you for your query. We have reviewed your account and we have identified several discrepancies in your account details and/or survey activity that are in breach of our terms and conditions. We regret to inform you that under such terms, we have had to close your account permanently. You will no longer be able to take surveys and claim rewards from e-Rewards going forward.
Thank you for your cooperation in this matter.
Another example why earn/burn is always a good idea.