I keep removing someone from imessage group chat, it shows that they aren’t in the gc, but they can still talk

Hi viewtifuI,

Let's verify the steps taken to remove someone from a group message:

"How to remove someone from a group text message

1. Tap the group message that has the contact you want to remove.
2. Tap the group icons at the top of the thread.
3. Tap the gray arrow icon to the right of the contacts, then swipe left over the name of the person you want to remove.
4. Tap Remove, then tap Done.

If you invite others in your group message to collaborate on a project, those contacts may still have access to the project after you remove them from the group message. Apps that host the shared project usually control access.

Want to remove yourself from a group text message? Learn how to mute the notifications from a group text or leave the conversation in the Messages app.

If you can't add or remove someone in a group message

• You can only remove someone if the group has four or more people, and everyone is using an Apple device, like an iPhone or iPad.
• You can only add someone to a group message if they're using an Apple device. If you want to add someone to a group message but they're using a non-Apple device, you need to create a new group message. That message will use SMS/MMS by default since someone is using a non-Apple device.
• You can only add someone to a group message that already includes three or more people. You can't add someone to a messages conversation that you're already having with just one other person.

 "

Add and remove people in group text messages on your iPhone or iPad - Apple Support

Cheers.

I removed someone from a Messages group chat, and my phone added them back a second later. I am confused on why it does this, because sometimes it happens even when i wasnt the one who removed people.

I've done all of this but the person in question is still able to talk, please help.