Apple released a note saying that the iTunes Connect section will be temporarily shut down from Thursday, December 22 to Thursday, December 29 for the winter holidays and during this shutdown, the following functionality will be unavailable, Access to iTunes Connect, The delivery of any apps or updates, Additionally, the following will be delayed:
Releases scheduled to appear on the App Store for the first time and Pricing changes scheduled through the interval pricing system in iTunes Connect. » iTunes Connect Shuts Down For Winter Holidays On December 22th Till 29th