You can contact customer support, you should have jotted down your password bc mobile games don't tend to have the best data recovery unless you spend money. Maybe Email settings will allow you to change your email that's tied to the account? Good luck, I hope you are able to transfer your account.
Maybe if you are rooted/jailbroken and are able to transfer the game data (I don't know what bin file #, but you can transfer all the game data), you might be able to do it that way but much riskier and I don't know the specifics.