Hello féérique
Welcome to the forum.
Could you please link to the so called "contract" where Panoramio commit to displaying our photos in Google Maps?
Please read the FAQ in this forum.
2.3. Why can’t I see my photo(s) on Google Maps?
Panoramio performs only direct uploads to Google Earth, and does not control what goes on in Google Maps. Panoramio photo updates between Google Earth and Google Map appears to be only every second month. Note that photos that were previously visible on Google Maps may suddenly disappear after an update of the photo layer. It looks like very few of the Google Earth approved photos will ever appear in Google Maps.
Thanks in advance