the Amazon Kindle app fails at advertising

So apparently the Amazon Kindle app on Android infrequently will notify you about some sale or other. So when I actually clicked on the notice to get to the app (and then hopefully be able to turn off the annoying advertising notifications somewhere), I got not to a display of deals that were supposedly of interest to me, but to an empty page that said it could not find any results for that search. WTF? How can they fail this much at their advertising, that they got me to click on it, and then don't show me anything?

Also there doesn't seem to be any option to turn their sales notifications off, I just see an option for the download notifications (no matter that the Amazon help center claims there was an option for Kindle deals notification in the same place), which I'd actually like to keep on. Or does that turn off both? Or do I have to turn off its permission for notifications in the Android settings?

a Tumblr question

Is there a way to get rid of that annoying "answertime" thing that shows at the top of your dashboard now? I usually don't even know these people (presumably famous ones?) that are asked questions. I couldn't find an option or extension in xkit.