Jewel Match 2 deleted saved games

Does anybody know why my games are being deleted after playing through over half way? This has happened twice, once on Jewel Match 2 and once on Midnight Mysteries

Mine does it all the time - I'm running a MAC system. I got to level 42 and then BOOM everything is gone. I have tried "ejecting/uninstalling" and reinstalling but it happened again.

I agree BF needs to look at this please?