I have an old account that is on two ios devices but on both link a device is mising. Both are up to date in Software and in game
Hey, if your game is not linked to a Game Center account you can find the instructions on how to link it here: https://help.ea.com/en-us/help/star-wars/star-wars-galaxy-heroes/how-to-save-your-progress-in-star-wars-galaxy-of-heroes
If you are unsure if your game is connected to Game Center or not you can send me a private message with your Ally Code and I can check that for you.
Thanks.