Random corrupted gamefile

Dear,

I tried to log-in to play the new phase, when i redownloaded the game my safe file was corrupted, and I had

to make a new one, so I lost all my cars, tuning, progress in singleplayer as multiplayer. I couldn't care less about my singleplayer progress

but I do care about my progress on multiplayer. Either way the weird thing is is that I still got all the achievements that i've earnd before, but did not get

the cars & the rewards for it. And i've started on level 24 instead of 0 and still have my money (around 4mil) in-game.

How is it possible that I lose all my progress & cars, but not my level & money.

I want my progress back, otheriwse 300+ hours are wasted.
So there is a back-up othewise everything would be gone.

Please help!!