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https://supercell.helpshift.com/a/clash-royale/?s=lost-account&f=i-lost-my-account-how-do-i-get-it-back&p=web
https://supercell.helpshift.com/a/clash-royale/?s=my-account&f=how-do-i-transfer-my-account-to-a-new-ios-device&p=web
https://supercell.helpshift.com/a/clash-royale/?s=my-account&f=how-do-i-transfer-my-account-to-a-new-ios-device&l=de
https://www.quora.com/How-do-I-sync-my-game-center-account-to-Clash-Of-Clans
https://www.giga.de/apps/clash-royale/tipps/clash-royale-spielstand-uebertragen-loeschen-und-zuruecksetzen-so-geht-s/
https://forum.supercell.com/showthread.php/1266719-New-iPhone-7-no-Game-Center
https://clashofclans.fandom.com/wiki/Game_Center_User_Guide
https://praxistipps.chip.de/clash-royale-spielstand-uebertragen-zuruecksetzen-und-loeschen_47248
https://www.reddit.com/r/ClashRoyale/comments/82yjws/ask_help_please_ios_my_game_center_account/
https://gaming.stackexchange.com/questions/261434/i-have-two-clash-royal-accounts-on-one-game-center-account
https://support.spryfox.com/hc/en-us/articles/219505967-How-do-I-sign-into-Game-Center-iOS-any-app-
https://discussions.apple.com/thread/5918357