Recently our app got rejected due to guideline 2.1, To give context, our app doesn't allow sign ups as accounts are made on our main website. We use mobile app for scanning services of our product. We provide three methods to login using email-password, Google and Apple sign-ins. As app review requires a demo account for testing, we provided demo account for all three methods. As apple id requires verification code to login which obviously comes to our phone number creates some issue here. Our app has been rejected multiple times because they were unable to use social logins. If anyone faced a similar issue. Please reply.