Who I have the same questioned this topic

I have seen this problem mentioned by several other users but it seems the issue has never been solved or adequate support provided.  I have spent countless hours on the phone with customer service / tech support and the "executive relations" team...although they struggle to call me and instead will only e-mail which takes weeks on each iteration of our back and forth.

I am not able to receive MMS from T-Mobile users in a group chat.  I receive all the other messages but when the T-Mobile user responds, the message goes to everyone other than me.  I have went through all the "simple" steps...there must be something wrong on the back-end with Verizon's services and/or the porting of my phone number initially.

Trying another route by posting here to get some help as everything else has been unsuccessful at this point and I am getting extremely frustrated.