Lost Progress

I have read the tips and suggestions. I also knew the steps to take as far as transferring my game to another device... Have done so quite a few times up until now...all of it is gone and I really would like to get it back,. The game i have is contract killer.. The first one. I even have recipes of money I've put into this game is their anyway my progress can be restored. Someone please get back to me asap! Thanks in advanced.