Virgin Media has told its customers it is "investigating" what went wrong after they were able to "reply all" to a group message.
@chrisj_brown Hi Chris. Rest assured we're working to fix this ASAP. Apologies for any inconvenience caused. MYa
@alexlspeed Hi Alex, Thanks for letting us know you've been affected by this. We're working on resolving the issue as we speak ^WM.
More top news
Becky Watts' uncle speaks exclusively to ITV News following the arrest of two people on suspicion of her alleged kidnap and murder.
The story of the years preceding Mohammed Emwazi's arrival in Syria is a complex one.
Staying blustery for the next 24 hours with strong winds driving some rain, sleet and snow from west to east tonight.