Hi! This happened to me once, let me help you: first ensure that Push Notifications for the Pop.in app are enabled, as this can hinder the receipt of SMS on both iOS and Android devices. Verify whether your mobile device is set to block SMS from unknown senders; such settings may prevent messages from short codes from being received. Try closing and then reopening the app. If the issue persists (it could though), consider obtaining a
virtual number to receive the verification code.