Lost save data

I've been playing a fair bit over the last month, collecting as many Morty's as possible...but today when I logged in, it put me back to where I was after playing for like 2 days. Please help me get my save data back as its definitely enough to make me uninstall

The same thing happened to me today. I used the cloud and it was saved locally. I also used the play store to list my achievements. But when I logged in to play today it said there were 3 saved files found and none of them were even mine. Anyway to fix this?