I LOST MY PHONE, HOW CAN I FIND BACK MY SIMCITY BUILDIT ID ???

Hi @steven_ooi60,

If your city is linked to a Facebook or Google play account you can simply install the game on your new device, finish the tutorial once again and then you will be given the possibility to log into your account. Then your city will be retrieve from the Cloud save. You don't need the ID.

Hope that helps.