Hi @Smiley To change your headline, on the website:
Click on 
(next to the Availability section)
Then 
then scroll down past your photos and keep going until you get to
make the change & then scroll down & click
If you check and see that it looks like it didn’t update, it’s your computer displaying what’s stored. It will have updated.
I agree @Timmy that it’s no guarantee, but every bit helps at times. 