I had this happen to me last year and was never able to get it resolved. Like some in the article, the deletion of my account was incomplete- my wishlist were still there, I could place orders from an Android device where I was still signed in on the app, and to this day I have a dash button that will order from my supposedly deleted account.
Funny... It took me about 2 weeks and multiple emails back and forth to close my account, and then it took Amazon almost a year to completely forget about me (I hope). Apparently if you don't want your account closed they can nuke it much faster.