What's going on? Can't sign in...

Been playing this game every day since it came out in 2015.... Can't sign in, "session has expired / signed in on another device."(which is not true) Not sure what's going on. But with "daily rewards" and the "passport" that I purchased with actual money plus other purchases...I feel I've and we(us) have been robbed. "THEY"...WHOEVER "THEY" ARE NEED TO FIX THIS, PRORATE OUR ACCOUNTS, AND COMPISATE US FOR LOSS OF DAILY REWARDS and PURCHASES WE HAVE PAID FOR.