Its handango so you have to wait a few hours (or even days) before your product page updates appear.
Marc is right, they are just favoring the bigger player who owns the game "Bejeweled".
As far as I know you don't have any problems with your product name. In fact, we're coming up with a game called "Jewel Challenge" soon. You just beat us to the Jewel part first.
Regards,
Erick
