I wish both EA and PopCap make an announcement to warn all players about the importance of the unique player ID as without this critical information, there is little the help advisor can do to help even if the players data are securely saved on the server.
@CreeperLelha Have you registered your email address with the game to get a reward of free gems before the reset? IF so, you might want to try re-installing your game and go through the register again with the same email address, and hopefully, you will be given a choice to recover your old progress.
Out of interest, what device and OS version are you using?