SimCity build it

Have you tried reinstalling/downloading the game again ? If you logged in to Game Center, Facebook, or Google Play, while playing SimCity Buildit before, your progress in your missing game IS saved. *You may have to begin a new city and play for up to an hour to re-sync. If a new city appears after downloading and installing, follow all prompts. Place buildings, make metal, etc. Soon you will be asked to login with Facebook, Game Center, or Google Play. Log into whichever one you originally logged into, using all of the same information you used before. You should then be asked if you want to continue with the city you're playing, or go back to your "old" city. You will want to select your "old" city. All of your progress should have been saved; population, simoleons, simcash, keys, etc. Hope this helps. Good luck!