Hello stevensteven123,
Thanks for your post to Apple Support Communities. We understand you have an issue with an alert about being removed from a text conversation on your iPhone. We have some questions to clarify the issue and will provide a few basic troubleshooting steps to get started.
- Go to Settings > General > About to confirm your current iOS version installed. This ensures you have the latest iOS version and can typically resolve abnormal behavior that you may experience. Currently the latest iOS version is iOS 16.1.2, so if you see a different version use the steps here to update: Update your iPhone or iPad - Apple Support
- When you try to text the person back, are you texting back an individual or are you replying in a group thread?
- To confirm, was your name removed from the conversation or another contact?
- Do you know if they also deleted the text thread to start a new one?
Try force closing the Messages app, then restarting your iPhone. Test to see if you still get that alert.
Close an app on your iPhone or iPod touch
Restart your iPhone - Apple Support
We look forward to hearing back from you.
Best regards.