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Sukanta_Biswas said:hello @huhPlease remember, for android or i-phone boosters had directly save on device memory, You can't moved or sync them.by game crashing or uninstalling you will lose them permanently. Which not returnable.The studio, booster has not yet started the syncing order. So you can face such problems.
If you have the appropriate evidence, please contact King care.
Please note that the boosters are saved to your device and not the game data, so you can use them when offline too. This does mean that any updates, crashes or device changes can cause these items to be lost. For this reason, we do not recommend storing too many of the won boosters as these can indeed be lost unlike Gold Bars. You can read more about this here: https://community.king.com/en/candy-crush-saga/discussion/177871/safeguarding-your-collected-boosters
You can also read about Safeguarding your collected boosters here: