You're welcome to send me the old save if you like just so I can have a look at what's happened to it. A guide on how to do so is here:
http://community.sigames.com/showthr...=1#post7729086
Just to check, you didn't have anything strange happening while saving at any point such as the phone running out of battery or being plugged/unplugged into or out of a computer?
It may be worth turning on Autosave as well as using the manual saves, just to provide you with a backup in case something similar happens in future.
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