ƈoinbase does not have a policy of contacting users via phone for customer support ＋１ー（８１８）ー５８３ー０７４８or other account-related issues. The company primarily communicates with users through email and in-app notifications. If you receive a phone call ＋１ー（８１８）ー５８３ー０７４８claiming to be from ƈoinbase , it is likely a scam.