It may take up to several hours to see the update in the Apple's App Store / Google Play Store. Please relax and wait.
IMPORTANT! Do not uninstall the game while the update is in progress.
This will not help or speed up the update process in any way, but you may lose your account if it was not linked to another device and / or social network (Facebook, Google Play Games, Apple Game Center) before.
Unlinked accounts can't be recovered. Please be patient, relax and wait.