Same here, got notice when I went to my account that I was at risk for deactivation. Could not figure out why, went to the page and saw that I needed to update these things for Amazon. I had already done this, but went through the steps. Got step one done and then I get the same error you got. I went back over and over and kept getting it. Signed out and signed back in and went to another computer and tried, but no luck. I opened a case and am still waiting for a reply. To tell me that I have a set time to get this information verified (which I have already done) or I will have my account restricted and then not even allow me to do this, is stressful. Knowing that I am going to have to wait for partner support does not ease my mind at all.