It seems like it can take longer for more obscure extensions, such as the foreign ones. The most important thing to make sure of is that the contact information for your domain is changed to your information and that the email address is the same as the one you are using at Sedo. If it isn't, I think it takes longer. It also will take longer over the weekends as well.
I would suggest contacting either
[email protected] and asking them what is going on with it, or contact the Sedo Rep on this board. Once they check the message it should change.