Follow-up: Apple support did get back to me and after much back and forth and uploading several various "official" documents proving that my company was at a different address, I was able to change my developer address. Then was able to proceed with the DSA compliance process using the correct address (a real pain-in-the-a$$, but successful).

Same here. - I did find the wrong address listed in my developer membership details at https://developer.apple.com/account. I used the "update info" button under the wrong address and filled out a lengthy form (including my D.U.N.S) requesting a change - Am hopeful Apple will reply within 24 hours like promised. Stay tuned and fingers crossed!