If your game was linked to a social network account, link the new game to these as well; after that, close the game, unload it from memory, and then run it again with a stable network connection. After the download, our aide Cheshire Jr. will inform you that he found game progress with a higher level and will offer you to download it.

If this does not happen, feel free to address our Support team, describe your problem and add your old and new game ID.