People adding to SMS group chat without permission

[sekito]

Why is it people can add us to group chats without permission in messages? And then it is up to us to leave the chat

It's obviously spam as soon as you open the chat you can see five other people have left

[Family00]

I blocked all the numbers in the unwanted group, and I haven't been invited back for 27 mins so it looks like it's work but I got a call from one of those numbers as for me to block I did one ring and then block. 

[sekito]

You blocked one spammer and the rest of them were victims like you.

[Family00]

It worked for half HR, and now I have an message with a link lmao, no I'm not clicking the link, but what I'm going to do is get rid of SAMSUNG PHONE, and but a MOTOROLA 

[Family00]

 this is what I got, I've blocked the number attached to it, this is a big pain in the ss