There's someone who keeps texting me in a group, and I've asked them to stop, but they won't. I don't know this person or the group. I took a screenshot of the person's message details. I tried to block the numbers (at one time, there were 17 numbers!) by clicking the three dots in the top-right corner of the text, but there is no way to block them. How can I stop them from texting? I have to turn my phone down completely just so it doesn't wake me up again. I tried to upload a JPEG of the message details, but it won't let me.
