"Message Failed to Send" notification on iPhone
Hello All,
When my iPhone is powered on after a long period of being off (usually overnight), I receive a pop-up alert to say "Your message to 'name of contact' failed to send", followed by an amount of days. The amount of days is currently 1009!
The contact is still a valid contact of mine. I have no idea how to stop the pop up/alert sound, or where the offending message may be located.
It doesn't seem to show after a brief period of being off... only usually overnight, but without fail, every morning, there it is with the day value increased by one.
Can anyone help?
Many thanks!
iPhone 5s, iOS 12