For me, once I touch the screen in the bottom right corner a window opens and let me make a choice to deselect the sponsor for future display. It seems to work for me and doesn't replay the particular ad as far as I can tell. Another observation, amazon recognized when a person enters the room or lights are turned on and started the photo session with the same ad always until I deselected it. I am just waiting for new ads to show up.
It didn't take Amazon long to come up with new ads. This just a game being played with us users. No way to escape other than shutting features down that start getting me in bad mood. Time to look for alternatives under my control.