I have just recently moved to Tesco mobile but also updated to IOS 6 around the same time. Since then I am not receiving any txt alerts for voicemail. Have spoken to Tesco mobile who say it is a phone issue. I have notifications for messages on my phone set to on,did a hard reset, reset network settings, restored the phone to factory settings. When I go into voicemail to try to record a custom greeting it seems to try to save but doesnt. I can access my voicemail fine but just dont get txt alert. Just wondering if anyone has any suggestions of anything else I can try?