I can't customise one of my payment page

[Edou777]

Hi,

I would like to replace the email which appear at the top of one of my payment page, with an image. But this page (http://img4.hostingpics.net/pics/703596111.png) is different from those linked with the other buttons (http://img4.hostingpics.net/pics/220994222.png) and the modifications I do in "Custom payment pages" don't work on it.