scary. im hesitant to give u any advice. officially you should email support
what i would do is Log Out on Google Games, if ur android....or whatever iphone cloud save u have. Once u log out, ur game is still stored locally on ur phone...and hey its still in the cloud too

this would stop it from finding another save in the cloud.
so on android, u log out from Google Games cloud save, the same way you connect to it. Go to settings, click on Google Games, it pops up the Google thing, you go to ur account and say log out.