Three network acknowledged a number of its customers did not receive the notification issued as part of the Government’s UK emergency alert test on Sunday. The test was carried out on Sunday at approximately 3pm and saw tens of millions of devices ringing with a siren-like sound while receiving a notification. However, some said they didn’t get the alert, which was issued to show Britons how an emergency test would look like in case of a possibly life-threatening emergency.Â
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