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Hi, If you change your phone you will lose all your boosters aas they are stored on the phone itself.
Below is some info from one of the superstars
Sometimes your boosters cannot be recovered or replaced:
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In the case of Phone, your collected booster is stored in phone memory. This stored booster can not be synced with the server, because the game studio still does not have this process.You will not be able to transfer the boosters to another device, you will lose the complete booster for app uninstalling or crashing.
However, Please check HERE.
If you play on mobile, then please email Player Support directly from the game.
Go to the game's Start Menu, then Settings - Help Center - Purchases & Gold Bars - Contact us and send them an email.