Is it Possible to change sponsor after getting listed?

[caringneo]

Hi JanTM,
Thanks for that info. Ok, I will just forget it. But in fact it doen't seems like a poor performing sponsor, rather a cheating sponsor. Anyway unless, I don't have solid proof (which is very difficult to get) I don't want to name the sponsor. But beware we webmasters are networking, so if a sponsor tries to play nasty we will spread it immediately.
There are lot of good sponsors out there.
Neo