1. Download/Open the Google play games app.
2. Click on profile down at the bottom right, open settings - scroll down until you can see 'change account for games' click on it.
3. When you see Frag - beside it you will see the 'change' button, click on it and pick the email that you want synced up with Frag.
4. Re-open Frag to check if it has linked. It it has linked, you shouldn't see the pop up and should be able to connect your cloud save with Google Play.
5. If these steps do not work, click on your profile - settings - cloud save - and try linking it up there by clicking on the Google Play button. If this doesn't work, contact support.
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