On 7/8 - one of our numbers in the plan (iPhone got added to a random text group made up of numbers not in the contact list! Today (7/9) an unknown number got added to our text group automatically (this was a nexus ) and one more phone in our plan (iphone) got added to another random text group!!
What is happening? Are others experiencing this kind of random additions to unknown groups? I saw some folks reporting this issue on ATT and Verizon in late 2017. I called Tmobile support today - they denied any widespread issue and did not create a case for my issue !
Best answer by tmo_marissa
To be honest, I'm hoping so, too -- but I also understand wanting to have answers; and engineers reviewing this oddity is the best way to get those -- and in a prolonged situation, would also be the best way to ensure that it's being corrected! The fact that this happened and stopped makes me think that there must have been some kind of routing hiccup in the SMS system that's now been corrected -- but if it happens again, please keep us posted for sure!