Can’t get back in to deleted group chat
Both me and my mom have logged into iCloud using a family-wide Apple ID. Recently, I decided to log into Messages using the family-wide Apple ID so I can access Messages from my iPad. My mom thought that one of my group chats was a scam chat so she deleted it from her phone (or did something else that prevented my from seeing the group chat). Now I can’t receive any messages from the group chat on neither my own phone nor my iPad.
The owner of the group chat says I’m still in the group chat and showed me proof. Unfortunately the family iCloud only has 5GB and didn’t have space for back-ups. I used a third-party software that finds deleted chats but I still couldn’t find the group chat. I asked the owner of the chat to kick me out and add me back in. It didn’t work. I then logged into Messages with my personal Apple ID and email (while still logged into iCloud using the family Apple ID). I asked the owner to add my email as a separate contact. It didn’t work (and I’ve confirmed with a separate person in the group chat that the owner added my email). Note: the owner sent a message every time he tried to add me back.
Is there any way for me to get back into the group chat? Did my mom not actually delete the group chat and actually did something else to it?
P.S.: Both mine and my mom’s iPhone were running iOS 15 when this happened.